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BEGIN:VEVENT
SUMMARY:- (University of Mississippi)
DTSTART:20260825T210000Z
DTEND:20260825T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/1
DESCRIPTION:Title: Welcome back social\nby - (University of Mississip
pi) as part of University of Mississippi Physics and Astronomy Colloquium\
n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Bianca Dittrich (Perimeter Institute)
DTSTART:20260901T210000Z
DTEND:20260901T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/2
DESCRIPTION:Title: From space-time atoms to gravitational waves\nby B
ianca Dittrich (Perimeter Institute) as part of University of Mississippi
Physics and Astronomy Colloquium\n\nLecture held in Lewis 101.\n\nAbstract
\nIs spacetime smooth\, or is it — like matter — built from fundamenta
l atoms? Spin foams are an approach to quantum gravity based on the latter
idea: spacetime atoms\, glued together\, form quantum spacetime. A centra
l difficulty in the field has been to understand this gluing\, as it deter
mines whether spin foams reproduce\, in the continuum and semi-classical l
imit\, a smooth spacetime governed by Einstein's equations — and in part
icular whether they support gravitational waves. I will describe a series
of works showing that\, assuming the theory admits a continuum limit to sm
ooth spacetimes\, the resulting dynamics does admit gravitational waves. R
emarkably\, these waves carry a quantum gravitational imprint\, and I will
argue that this leads to an observable which is measurable\, although onl
y in principle.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Hector Okada Da Silva (UIUC)
DTSTART:20260908T210000Z
DTEND:20260908T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/3
DESCRIPTION:Title: Illuminating the strong-field regime of gravity\nb
y Hector Okada Da Silva (UIUC) as part of University of Mississippi Physic
s and Astronomy Colloquium\n\nLecture held in Lewis 101.\n\nAbstract\nNeut
ron stars are some of the most extreme objects in Nature. Their typical ma
sses (about 1.4 times that of the Sun) combined with their small radii (ab
out 12 km) result in densities exceeding the nuclear saturation density\,
above which exotic states of matter can form. Moreover\, neutron stars are
the strongest gravitational field sources known\, second only to black ho
les. These properties make neutron stars outstanding laboratories to study
matter and gravity in situations out of reach of terrestrial and Solar Sy
stem experiments. The observation of the x-ray pulse profile emitted by ho
tspots on the surface of neutron stars\, as observed by the Neutron Star I
nterior Composition Explorer (NICER)\, offers a unique tool to measure the
properties of these objects. The x-ray emission takes place near the star
’s surface\, where the gravitational field is strong\, making these obse
rvations an incisive probe into the spacetime curvature generated by these
stars. In this colloquium\, I will discuss how general relativity plays a
key role in the accurate modeling of pulse profiles and the prospects for
testing Einstein's theory - and some of its contenders - using these obse
rvations.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sriparna Bhattacharya (Clemson University)
DTSTART:20260915T210000Z
DTEND:20260915T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/4
DESCRIPTION:Title: Using light to open doors for next-generation thermoel
ectrics and chemical imaging techniques\nby Sriparna Bhattacharya (Cle
mson University) as part of University of Mississippi Physics and Astronom
y Colloquium\n\nLecture held in Lewis 101.\n\nAbstract\nMy talk will focus
on using light to decode fundamental mechanisms in materials research. As
two broad examples\, I’ll discuss how Raman spectroscopy has helped ide
ntify phonons that drive anharmonicity in binary chalcogenides (e.g.\, SnS
e and GeTe)\, leading to their intrinsically low lattice thermal conductiv
ity and a high figure-of-merit for converting waste heat into electricity.
Experimental evidence will be presented demonstrating that light is more
effective than transport measurements in advancing phonon-engineering appr
oaches to improve thermoelectric material performance. My other example in
cludes the design of a new luminescence-based chemical imaging technique t
hat shows promise for non-invasive detection of implant infection. The lum
inescence in our imaging technique is activated by ultrasound\, enabling m
uch-needed deep-tissue\, non-invasive\, early detection of implant-associa
ted infections.\n\nThis work on binary chalcogenides was performed in coll
aboration with Prof. Y-Y. Chen’s group in Academia Sinica\, Taiwan\, Pro
f. A.M. Rao’s group at Clemson University\, and Dr. Rahul Rao\, Air Forc
e Research Laboratory\, WPAFB\, Dayton\, OH\, 45433 USA. The new luminesce
nce-based chemical imaging technique was jointly developed in collaboratio
n with Profs. J. N. Anker’s and A. M. Rao’s research teams at Clemson
University.\n\nBiography:\nSriparna Bhattacharya is a Research Associate P
rofessor at the Department of Physics and Astronomy\, the Lab Manager at t
he Clemson Nanomaterials Institute\, and a Faculty Scholar at the School o
f Health Research at Clemson University. Her broad research interests incl
ude waste-heat harvesting using electron- and hole-based\, as well as ion-
based\, thermoelectrics. Recently\, she collaborated with Prof. H. J. Gold
smid\, aka the ‘Father of Thermoelectrics\,’ (School of Physics\, Univ
ersity of New South Wales\, Sydney\, Australia)\, to develop a new evaluat
ion method for thermoelectric materials. This study was featured as the Ed
itor’s Pick by the Editorial Board of the Journal of Applied Physics. Sh
e is also passionate about improving lives in the State of SC and beyond.
She is developing chemical imaging methods for early detection of infectio
n in biomedical applications.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Yang Zhang (UT Knoxville)
DTSTART:20260922T210000Z
DTEND:20260922T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/5
DESCRIPTION:Title: Electron Pairing and Fractionalization in the Age of A
I and Quantum Computing\nby Yang Zhang (UT Knoxville) as part of Unive
rsity of Mississippi Physics and Astronomy Colloquium\n\nLecture held in L
ewis 101.\n\nAbstract\nElectrons in solids can do two remarkable things: t
hey can pair up and flow without resistance\, and they can collectively be
have as fractionally charged particle. Predicting either remains a major c
hallenge because the physics spans enormous spatial scales and exponential
ly large quantum state spaces. In this talk\, I will show how my group use
s artificial intelligence to tackle these challenges. Machine-learned Hami
ltonians reproduce moiré electronic structures with meV accuracy for syst
ems of up to millions of atoms\, enabling studies of superconductivity fro
m weak to strong coupling in twisted semiconductors. For the second\, we t
urn to quantum processors. which can directly represent and manipulate hig
hly entangled states. Constant-depth circuits prepare 18 fractional quantu
m Hall states up to 156 qubits. Remarkably\, some of the most exotic state
s are also the easiest to prepare. Together\, these efforts show how AI ca
n extend quantum-materials modeling to realistic scales\, while quantum pr
ocessors open access to states beyond classical reach.\n\nBio: Yang Zhang
is an Assistant Professor of Physics at the University of Tennessee\, Knox
ville. He earned his bachelor’s degree in physics and mathematics from T
singhua University in 2015\, followed by a Ph.D. in Physics from the Max P
lanck Dresden in 2019\, then he worked as a postdoc at MIT until 2022. Dr.
Zhang has received several awards\, including two overall Winner Awards i
n the World Supercomputing Contest\, SFB Best Doctoral Thesis Award\, the
Tschirnhaus Medal from the Leibniz Association\, the Otto-Hahn Medal of th
e Max Planck Society\, International Union of Pure and Applied Physics (IU
PAP) Early Career Scientist Prize in Computational Physics\, and Haslam fa
mily professor from UT Knoxville. Dr. Zhang's research focuses on topolog
ical and correlated quantum states\, quantum transport\, and quantum compu
tation\, using a combined first-principle and many-body simulation approac
h.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20260929T210000Z
DTEND:20260929T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/6
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Cynthia Keeler (Arizona State University)
DTSTART:20261006T210000Z
DTEND:20261006T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/7
DESCRIPTION:by Cynthia Keeler (Arizona State University) as part of Univer
sity of Mississippi Physics and Astronomy Colloquium\n\nLecture held in Le
wis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Richard Anantua (UT San Antonio)
DTSTART:20261013T210000Z
DTEND:20261013T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/8
DESCRIPTION:by Richard Anantua (UT San Antonio) as part of University of M
ississippi Physics and Astronomy Colloquium\n\nLecture held in Lewis 101.\
nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kurt Hinterbichler (Case Western Reserve University)
DTSTART:20261020T210000Z
DTEND:20261020T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/9
DESCRIPTION:by Kurt Hinterbichler (Case Western Reserve University) as par
t of University of Mississippi Physics and Astronomy Colloquium\n\nLecture
held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Austin Schneider (Texas A&M University)
DTSTART:20261027T210000Z
DTEND:20261027T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/10
DESCRIPTION:by Austin Schneider (Texas A&M University) as part of Universi
ty of Mississippi Physics and Astronomy Colloquium\n\nLecture held in Lewi
s 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Abigail Crites (Cornell University)
DTSTART:20261103T220000Z
DTEND:20261103T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/11
DESCRIPTION:by Abigail Crites (Cornell University) as part of University o
f Mississippi Physics and Astronomy Colloquium\n\nLecture held in Lewis 10
1.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sarah Hörst (JHU)
DTSTART:20261110T220000Z
DTEND:20261110T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/12
DESCRIPTION:by Sarah Hörst (JHU) as part of University of Mississippi Phy
sics and Astronomy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA
\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ish Gupta (UC Berkeley)
DTSTART:20261117T220000Z
DTEND:20261117T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/13
DESCRIPTION:by Ish Gupta (UC Berkeley) as part of University of Mississipp
i Physics and Astronomy Colloquium\n\nLecture held in Lewis 101.\nAbstract
: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Anamaria Effler (LIGO Livingston)
DTSTART:20261201T220000Z
DTEND:20261201T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/14
DESCRIPTION:by Anamaria Effler (LIGO Livingston) as part of University of
Mississippi Physics and Astronomy Colloquium\n\nLecture held in Lewis 101.
\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gabriela Petculescu (Louisiana Accelerator Center / University of
Louisiana at Lafayette)
DTSTART:20260120T220000Z
DTEND:20260120T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/15
DESCRIPTION:Title: Elastic Anisotropy in Additively Manufactured 316L St
ainless Steel\nby Gabriela Petculescu (Louisiana Accelerator Center /
University of Louisiana at Lafayette) as part of University of Mississippi
Physics and Astronomy Colloquium\n\nLecture held in Lewis 101.\n\nAbstrac
t\nThe large parameter space in selective laser melting (SLM) — an addit
ive manufacturing (a.k.a.\, 3D printing) technology — presents a challen
ge for property predictors. In this seminar\, a study of elastic and corro
sion properties of SLM 316L under constant 100 W laser power and variable
laser speed (600 to 1200 mm/s) is presented. Property variations and their
relation to the change in material microstructure are analyzed. Resonant
ultrasound spectroscopy on mm-sized rectangular parallelepipeds was used f
or measuring location-dependent elastic moduli. Complementary pulse-echo m
easurements provided volume-integrated values for the longitudinal elastic
modulus. Cyclic potentiodynamic polarization measurements were used to de
termine the corrosion potential\, pitting potential\, repassivation curren
t\, and corrosion current density of the fabricated samples. The microstru
cture was determined with Electron Backscatter Diffraction. The range of p
roperties observed\, understood through grain boundary density and misorie
ntation distribution analysis\, reinforces the capabilities of materials p
roduced through SLM: the tuning of fabrication parameters enables material
s tailoring for optimal performance in specific applications.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ish Gupta (Network for Neutrinos\, Nuclear Astrophysics\, and Symm
etries (N3AS) / University of California — Berkeley / Visiting Scholar\,
Northwestern University)
DTSTART:20260127T220000Z
DTEND:20260127T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/16
DESCRIPTION:Title: Canceled due to Ice Storm\nby Ish Gupta (Network
for Neutrinos\, Nuclear Astrophysics\, and Symmetries (N3AS) / University
of California — Berkeley / Visiting Scholar\, Northwestern University) a
s part of University of Mississippi Physics and Astronomy Colloquium\n\nLe
cture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sriparna Bhattacharya (Department of Physics and Astronomy\, Clems
on University)
DTSTART:20260203T220000Z
DTEND:20260203T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/17
DESCRIPTION:Title: Canceled due to Ice Storm\nby Sriparna Bhattachar
ya (Department of Physics and Astronomy\, Clemson University) as part of U
niversity of Mississippi Physics and Astronomy Colloquium\n\nLecture held
in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/17/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kayla DeHolton (Department of Physics\, Penn State University)
DTSTART:20260217T220000Z
DTEND:20260217T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/18
DESCRIPTION:Title: Neutrino Oscillations at the South Pole and Beyond\nby Kayla DeHolton (Department of Physics\, Penn State University) as pa
rt of University of Mississippi Physics and Astronomy Colloquium\n\nLectur
e held in Lewis 101.\n\nAbstract\nDespite being one of the most abundant k
nown particles in the universe\, neutrinos remain an enigma within the Sta
ndard Model. The past quarter-century has seen great experimental strides
in measuring the properties of neutrino oscillations. However\, many funda
mental questions remain unanswered\, some of which can be probed through a
tmospheric neutrino oscillations. The IceCube DeepCore detector at the Sou
th Pole has been collecting GeV-scale neutrino data for the past decade\,
and currently provides world-leading measurements of the neutrino oscillat
ion parameters using atmospheric neutrinos. IceCube's ability to measure t
hese parameters will improve even further with the IceCube Upgrade current
ly being deployed in Antarctica. The IceCube Upgrade will consist of 7 add
itional densely-instrumented strings with new types of modules containing
multiple PMTs\, greatly increasing detector performance for GeV-scale neut
rinos. Furthermore\, the techniques developed for these measurements can b
e readily applied to additional science priorities\, such as atmospheric n
eutrino oscillations with the DUNE far detectors\, GeV multi-messenger ast
rophysics with IceCube\, and improvements to open-source deep learning rec
onstruction frameworks used in the neutrino telescope community.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/18/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jeremy Wolcott (Department of Physics and Astronomy\, Tufts Univer
sity)
DTSTART:20260303T220000Z
DTEND:20260303T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/19
DESCRIPTION:Title: Multifaceted Nu Insights: Harnessing MCMC to Inspect
Neutrino Oscillations from Every Angle\nby Jeremy Wolcott (Department
of Physics and Astronomy\, Tufts University) as part of University of Miss
issippi Physics and Astronomy Colloquium\n\nLecture held in Lewis 101.\n\n
Abstract\nNeutrinos are among the most unusual of the fundamental particle
s known in modern physics. Besides interacting with ordinary matter so rar
ely that supermassive detectors or extremely intense sources are required
to even observe them\, and being separated from the other fundamental ferm
ions by at least six orders of magnitude in mass\, neutrinos exhibit a ric
h phenomenology that may at last give us hints as to where we should look
beyond current theory for new fundamental insights. The discovery of an un
derlying symmetry in the way the neutrino states interact with one another
or the way the neutrinos' masses are arranged\, for instance\, or the vio
lation of symmetries between neutrinos and their antimatter counterparts\,
could have profound consequences for both particlephysics and cosmology.\
n\nHowever\, contemporary experiments attempting to access this phenomenol
ogy must grapple with its numerous degeneracies and multiple degrees of fr
eedom. In this talk\, I will discuss how Bayesian Markov chain Monte Carlo
(MCMC) is being used to simultaneously examine many different aspects of
neutrino oscillation measurements with an efficient computing approach. I
will review its applications to current data from the NOνA experiment at
Fermilab\, and show how we obtain insights into both the underlying physic
al system and our instrumental setup. I will conclude with some thoughts a
bout MCMC's promise for future neutrino oscillation measurements.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/19/
END:VEVENT
BEGIN:VEVENT
SUMMARY:-
DTSTART:20260310T210000Z
DTEND:20260310T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/20
DESCRIPTION:Title: No Colloquium - Spring Break\nby - as part of Uni
versity of Mississippi Physics and Astronomy Colloquium\n\nLecture held in
Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/20/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Angelle Tanner (Department of Physics and Astronomy\, Mississippi
State University)
DTSTART:20260317T210000Z
DTEND:20260317T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/21
DESCRIPTION:Title: The NASA Pioneers Landolt Mission: Aiming lasers at t
he Earth for Science!\nby Angelle Tanner (Department of Physics and As
tronomy\, Mississippi State University) as part of University of Mississip
pi Physics and Astronomy Colloquium\n\nLecture held in Lewis 101.\n\nAbstr
act\nThe Landolt mission\, which is a laser-packing 16U CubeSat selected f
or the NASA Pioneers program\, will provide improved stellar absolute flux
uncertainties that will have a significant impact on our knowledge of the
properties of extrasolar planets\, supernova\, and beyond. Now that Gaia
has provided improved distances and cutting-edge echelle spectrographs are
reaching RV precisions below 1 m/s\, the error on the flux of the star ca
n be the dominant source of uncertainty for some planet properties. While
the transit signal geometrically reveals the radius of the planet\, that v
alue and the planet's mass depend on the flux of the star and its distance
\, radius\, and temperature. For some systems\, we expect that the uncerta
inties in planet radius could improve from 5% to 0.5% with potential ramif
ications for the interpretation of the planet-radius gap. Absolute flux un
certainties also impact estimates of stellar ages thus impeding our abilit
y to study planetary properties as a function of time. Supernova cosmology
studies are dependent on the absolute spectral flux calibration of a set
of standard white dwarfs which need to have consistent uncertainties at a
range of rest wavelengths. These uncertainties then propagate into the par
ameters used to determine the dark energy equation of state. For this coll
oquium I will describe the Landolt mission\, why we need it\, why it's nam
ed after a well-loved astronomer\, and how it will improve our understandi
ng of the Universe.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/21/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mohamed Laradji (Department of Physics and Materials Science\, Uni
versity of Memphis)
DTSTART:20260324T210000Z
DTEND:20260324T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/22
DESCRIPTION:Title: Membrane-Mediated Self-Assembly of Nanoparticles: Cur
vature\, Polymer Grafting\, and Self-Limited Organization\nby Mohamed
Laradji (Department of Physics and Materials Science\, University of Memph
is) as part of University of Mississippi Physics and Astronomy Colloquium\
n\nLecture held in Lewis 101.\n\nAbstract\nNanostructures formed from nano
particles play an important role in emerging technologies\, including plas
monic materials\, photonic devices\, and targeted drug delivery. A central
challenge is understanding how nanoparticles can spontaneously organize i
nto well-defined structures through simple physical mechanisms. Lipid memb
ranes provide a versatile platform for nanoparticle self-assembly because
particle adhesion deforms the membrane\, generating curvature-mediated int
eractions between membrane-bound organize nanoparticles into a wide range
of collective structures\, including one-dimensional chains\, regular two-
dimensional stars and polygons\, and three-dimensional polyhedral nanoclus
ters\, including Platonic solids\, with the resulting morphology controlle
d by the interplay between adhesion strength\, membrane bending rigidity\,
and particle geometry.\n\nOur studies further show that when nanoparticle
s are grafted with polymers and interact with membranes\, the competition
between membrane deformation and polymer conformational entropy produces a
dditional effective interactions between particles. Under appropriate cond
itions\, these interactions give rise to self-limited nanoparticle cluster
s\, suggesting new routes for designing hierarchically organized nanoparti
cle assemblies.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/22/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kevin Yi-Wei Lin (Data Scientist\, Hyperion Technology Group\, Inc
.)
DTSTART:20260331T210000Z
DTEND:20260331T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/23
DESCRIPTION:Title: Sound intelligence: Passive Acoustic Applications in
Defense\nby Kevin Yi-Wei Lin (Data Scientist\, Hyperion Technology Gro
up\, Inc.) as part of University of Mississippi Physics and Astronomy Coll
oquium\n\nLecture held in Lewis 101.\n\nAbstract\nPassive acoustic techniq
ues offer a critical advantage on the battlefield: the ability to gather s
ituational awareness without actively emitting probing waves\, unlike sona
r or radar\, which can compromise the user's position. One focus of Hyperi
on TechnologyGroup\, Inc. (Tupelo\, MS) is developing such sensor systems\
, including hostile Fire Fast Locating sensor (FireFLY)\, Scalable Passive
Acoustic Reporting & Targeting Nodes (SPARTN) and more. FireFLY is an omn
i-directional microphone array designed for gunshotand Unmanned Aircraft S
ystem (UAS) detection while SPARTN utilizes in-house infrasound sensors fo
r rockets\, artillery\, and mortars (RAM) detection. As a data scientist a
t Hyperion\, I have been involved in the algorithm development aspects of
these systems\,and also a several government-contracted software projects\
, including Threat-Mapped Protection Assessment and Simulation Tool (TMPAS
T) for assessing sniper and bomb threats in a 3D mapping tool\, sound clas
sification for military ground vehicles\, and Data AssemblyHub for accessi
ng and processing scientific data from underwater uncrewed systems. In thi
s talk\, I will go over my personal involvement in these projects\, how my
background in physical acoustics came into play\, and my journey in trans
itioning from academia to industry.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/23/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sokrates Pantelides (Department of Physics and Astronomy\, Vanderb
ilt Univeristy)
DTSTART:20260407T210000Z
DTEND:20260407T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/24
DESCRIPTION:Title: A Journey on the Nanoscale with a Combination of Theo
ry and Microscopy\nby Sokrates Pantelides (Department of Physics and A
stronomy\, Vanderbilt Univeristy) as part of University of Mississippi Phy
sics and Astronomy Colloquium\n\nLecture held in Lewis 101.\n\nAbstract\nD
ensity-functional-theory-based calculations using high-performance compute
rs have made enormous strides in describing the atomic-scale properties of
complex materials and structures. In parallel\, scanning transmission ele
ctron microscopy (STEM) has reached unprecedented levels of atomic-resolut
ion imaging and electron-energy-loss spectroscopy (EELS). The latest advan
ces include imaging of charge distributions and meV-scale energy resolutio
n in EELS\, enabling atomic-resolution vibrational EELS (vEELS). This talk
is a journey in the nanoscale world\, highlighting synergistic applicatio
ns of theory and recent STEM advances in nanowire fabrication\, resolution
of the identity of a novel 2D material\, unraveling puzzles in imaged ele
ctron distributions\, elucidating emergent vibrational properties in super
lattices\, demonstrating atom-by-atom vEELS with chemical-bond sensitivity
\, and more. Examples of theory going beyond the reach of experiments furt
her solidify its role as a partner in the spectacular enterprise of electr
on microscopy and spectroscopy.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/24/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Shuang Tu (Department of Electrical & Computer Engineering and Com
puter Science\, Jackson State University)
DTSTART:20260414T210000Z
DTEND:20260414T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/25
DESCRIPTION:Title: Multiphysics Modeling and Simulation of Space Charge
Effects in Liquid Argon Time Projection Chambers (LArTPC)\nby Shuang T
u (Department of Electrical & Computer Engineering and Computer Science\,
Jackson State University) as part of University of Mississippi Physics and
Astronomy Colloquium\n\nLecture held in Lewis 101.\n\nAbstract\nThis talk
presents the development of a high-performance numerical solver designed
to simulate the complex interaction between space charge distributions and
electric fields in Liquid Argon Time Projection Chamber (LArTPC) detector
s. LArTPCs are the primary technology for next-generation neutrino experim
ents\, relying on highly purified liquid argon and strong electric fields
to reconstruct particle trajectories. While electrons created by ionizatio
n are quickly collected at the anode\, the resulting positive argon ions d
rift significantly slower at speeds comparable to the bulk fluid flow.\n\n
For surface-level detectors like ProtoDUNE-SP\, the constant influx of cos
mic rays leads to a significant accumulation of these positive ions. This
"space charge" creates substantial distortions in the nominal electric fie
ld\, leading to spatial and temporal offsets in reconstructed particle tra
cks and affecting electron-ion recombination rates. To address this\, we h
ave developed a coupled numerical framework: the ion transport equation is
solved using a time-accurate\, cell-centered Finite Volume Method (FVM)\,
while the electric potential is calculated via a continuous Finite Element
Method (FEM).\n\nThe solver accounts for the dynamic coupling where the e
lectric field dictates ion drift velocity\, and the resulting space charge
density serves as a source term for the potential equation. Our implement
ation is parallelized using the Message Passing Interface(MPI) for high-pe
rformance scalability. Furthermore\, we will address a custom-developed Co
mputational Fluid Dynamics (CFD) package to incorporate realistic backgrou
nd flow velocities into the convective transport. We will discuss the veri
fication of this solverand its implications for improving the calibration
and physics reach of large-scale LArTPC detectors.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/25/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Claire Zukowski (Swenson College of Science and Engineering\, Univ
ersity of Minnesota — Duluth)
DTSTART:20260421T210000Z
DTEND:20260421T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/26
DESCRIPTION:Title: Gravity as a Hologram\nby Claire Zukowski (Swenso
n College of Science and Engineering\, University of Minnesota — Duluth)
as part of University of Mississippi Physics and Astronomy Colloquium\n\n
Lecture held in Lewis 101.\n\nAbstract\nQuantum gravity aims to combine th
e quantum physics relevant at scales below the size of an atom with Einste
in's theory of gravity\, which applies at the largest scales. This is cruc
ial for understanding regimes where a large amount of gravitating mass is
compressed to a tiny distance scale\, for instance near the singularity of
a black hole or close to the Big Bang that populated our universe. Hologr
aphy gives a realization of quantum gravity through explicit dualities bet
ween quantum physics and gravity. After giving an overview of this framewo
rk\, I will show how several geometrical aspects of gravity are emergent f
rom quantum physics. Importantly\, my focus will be on a geometry called d
e Sitter spacetime\, which closely resembles our actual universe.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/26/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Steve Winter (Department of Physics\, Wake Forest University)
DTSTART:20260428T210000Z
DTEND:20260428T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/27
DESCRIPTION:Title: Effective Hamiltonian Approaches for Quantum Magnets<
/a>\nby Steve Winter (Department of Physics\, Wake Forest University) as p
art of University of Mississippi Physics and Astronomy Colloquium\n\nLectu
re held in Lewis 101.\n\nAbstract\nQuantum materials represent a broad cla
ss of systems whose experimental response relies on uniquely quantum aspec
ts such as entanglement\, Berry phases\, and electronic correlations. Mode
ling of such materials presents challenges related to a variety complex be
haviors that manifest at different energy scales. In this field\, first-pr
inciples approaches often provide a vital bridge between experiments and t
heoretical models. In this talk\, I will introduce our numerical strategie
s for systematically building low-energy models with local charge\, spin\,
and orbital degrees of freedom of arbitrary complexity. I will discuss th
e insights that these methods have yielded for layered vdW materials\, in
which spin-orbit coupling induces strongly anisotropic and competing magne
tic interactions.Time (and interest) permitting\, I will also discuss our
work on extending these methods to treat (i) spin-lattice coupling\, and (
ii) dynamical effective Hamiltonians for modeling non-linear optical respo
nses.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/27/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sophie Middleton (Division of Physics\, Mathematics and Astronomy\
, Caltech)
DTSTART:20260212T220000Z
DTEND:20260212T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/28
DESCRIPTION:Title: Hidden Worlds and Forbidden Processes: Using High Int
ensity Lepton Beams to Explore New Physics\nby Sophie Middleton (Divis
ion of Physics\, Mathematics and Astronomy\, Caltech) as part of Universit
y of Mississippi Physics and Astronomy Colloquium\n\nLecture held in Lewis
101.\n\nAbstract\nDespite its successes\, the Standard (SM) is fundamenta
lly incomplete\, failing to fully account for the matter-antimatter asymme
try\, the nature of dark matter\, and the origin of neutrino masses. To ad
dress these shortcomings\, the “intensity frontier” offers a powerful
probe into new physics that either manifests itself at energy scales far b
eyond the direct reach of current colliders or that only feebly interacts
with SM particles. In this talk\, I will explore how high-intensity search
es — specifically at B-factories and the upcoming Mu2e experiment — ar
e poised to revolutionize our understanding of the dark sector and lepton
flavor physics. The talk will also highlight the growing synergy between A
I and fundamental discovery. A compelling solution to the dark matter puzz
le lies in a “dark sector” of particles that are neutral under SM forc
es. Low-energy\, high-intensity colliders like BaBar (at SLAC) or Belle an
d Belle II (in Japan) provide a unique laboratory for these searches. I wi
ll discuss recent world-leading results from BaBar and how advanced machin
e learning architectures are essential for identifying rare dark sector si
gnatures. Plans to utilize Belle II to leverage a rapidly growing dataset
to explore mesogenesis\, dark photons\, axion-like particles (ALPs)\, and
heavy neutral lepton (HNL) scenarios at unprecedented sensitivities will a
lso be presented. Furthermore\, I will detail the status of the Mu2e exper
iment at Fermilab\, which seeks to observe the coherent\, neutrino-less co
nversion of a muon into an electron. This process represents a clear signa
l of charged lepton flavor violation (CLFV)\, unobservably suppressed in t
he SM. As Mu2e prepares for its first physics run in 2027\, I will highlig
ht the on-going preparations for physics analysis including deployment of
AI-driven particle identification and background characterization. These t
ools are enabling Mu2e to probe effective mass scales up to 10\,000 TeV.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/28/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Shawn Dubey (Department of Physics\, Brown University)
DTSTART:20260219T220000Z
DTEND:20260219T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/29
DESCRIPTION:Title: A Tour of Tools\, Trends\, and Tradeoffs in Machine L
earning for High Energy Physics\nby Shawn Dubey (Department of Physics
\, Brown University) as part of University of Mississippi Physics and Astr
onomy Colloquium\n\nLecture held in Lewis 101.\n\nAbstract\nMachine Learni
ng (ML) has advanced rapidly over the past decade\, transforming the way d
ata-intensive sciences are conducted. High energy physics is distinctive a
mong the physical sciences in its early adoption and deployment of new ML
methods\, driven by extreme data volumes\, complex event structures\, and
stringent real-time constraints. In this talk\, I will trace the evolution
of these approaches through my own research trajectory\, beginning with t
he use of multilayer perceptrons and physics-motivated feature engineering
\, and progressing toward modern techniques that emphasize data curation\,
weak supervision\, and hardware-software co-design of ML algorithms. I wi
ll highlight cutting edge methods and how they arise from the interaction
between models\, data\, and experimental constraints\, and how this perspe
ctive informs future research directions.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/29/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Frank Meier (Vossen Group\, Duke University)
DTSTART:20260226T220000Z
DTEND:20260226T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/30
DESCRIPTION:Title: Precision Flavor Physics in the Era of Artificial Int
elligence\nby Frank Meier (Vossen Group\, Duke University) as part of
University of Mississippi Physics and Astronomy Colloquium\n\nLecture held
in Lewis 101.\n\nAbstract\nThe Standard Model of particle physics (SM) is
a powerful theoretical framework. However\, many fundamental questions li
ke the explanation for the large matter-antimatter asymmetry observed in t
oday's universe remain unanswered. Precision measurements and indirect sea
rches offer a promising path to uncover new insights and potential signs o
f physics beyond the SM. Recent advances in computational techniques now a
llow us to exploit the large experimental datasets more effectively\, reac
hing unprecedented levels of precision. In my talk\, I will discuss how ma
chine learning is reshaping these precision measurements in flavor physics
\, with a focus on semileptonic decays of heavy mesons. These decays play
a central role in determining fundamental parameters of the Standard Model
and in probing possible violations of lepton flavor universality. I will
describe how machine-learning-based reconstruction and classification meth
ods dramatically improve signal efficiency and background suppression comp
ared to traditional approaches. Using examples from my work at the Belle I
I experiment\, I will show how these techniques have enabled more precise
measurements. Finally\, I will discuss how these methods generalize beyond
flavor physics and outline future opportunities for applying modern AI to
ols to a wide range of data-intensive problems across experimental physics
.here the particles are significantly accelerated by the dissipation of th
e magnetic field associated to a possible reconnection manifestation.\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/30/
END:VEVENT
BEGIN:VEVENT
SUMMARY:-
DTSTART:20260505T210000Z
DTEND:20260505T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/31
DESCRIPTION:Title: No colloquium - Final Exam Week\nby - as part of
University of Mississippi Physics and Astronomy Colloquium\n\nLecture held
in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/31/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD (reserved)
DTSTART:20270119T220000Z
DTEND:20270119T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/32
DESCRIPTION:by TBD (reserved) as part of University of Mississippi Physics
and Astronomy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/32/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD (reserved)
DTSTART:20270126T220000Z
DTEND:20270126T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/33
DESCRIPTION:by TBD (reserved) as part of University of Mississippi Physics
and Astronomy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/33/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD (reserved)
DTSTART:20270202T220000Z
DTEND:20270202T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/34
DESCRIPTION:by TBD (reserved) as part of University of Mississippi Physics
and Astronomy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/34/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270209T220000Z
DTEND:20270209T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/35
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/35/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270216T220000Z
DTEND:20270216T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/36
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/36/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270223T220000Z
DTEND:20270223T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/37
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/37/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270302T220000Z
DTEND:20270302T230000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/38
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/38/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270316T210000Z
DTEND:20270316T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/39
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/39/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270323T210000Z
DTEND:20270323T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/40
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/40/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270330T210000Z
DTEND:20270330T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/41
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/41/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270406T210000Z
DTEND:20270406T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/42
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/42/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270413T210000Z
DTEND:20270413T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/43
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/43/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270420T210000Z
DTEND:20270420T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/44
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/44/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBD
DTSTART:20270427T210000Z
DTEND:20270427T220000Z
DTSTAMP:20260827T063158Z
UID:UMissPhysAstroColloq/45
DESCRIPTION:by TBD as part of University of Mississippi Physics and Astron
omy Colloquium\n\nLecture held in Lewis 101.\nAbstract: TBA\n
LOCATION:https://master.researchseminars.org/talk/UMissPhysAstroColloq/45/
END:VEVENT
END:VCALENDAR