Events
April
| Event Location: HENN 318 | Speaker: Daniel Anglés-Alcázar, University of Connecticut
Abstract:
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March
| Event Location: HENN 202 | Speaker: Zev Bryant, Stanford University
Abstract :
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March
| Event Location: BRIM 311 | Speaker: Janez Bonca – University of Ljubljana
Abstract: In the first part of my talk, I will discuss a Holstein-like model with two electrons nonlinearly coupled to quantum phonons. Using an efficient method based on full quantum approach [1-4] we simulate the dynamical response of a system subject to a short spatially uniform optical pulse that couples to dipole-active vibrational modes. Nonlinear electron-phonon coupling can either soften or strengthen the phonon frequency in the presence of electron density [5].
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March
| Event Location: HENN 318 | Speaker: Josh Emery, Northern Arizona University
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March
| Event Location: HENN 202 | Speaker: Tim Tait, University of California, Irvine
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I will discuss the need to extend the Standard Model of particle physics in order to describe the dark matter, a mysterious substance whose existence can be inferred from cosmological measurements, but whose fundamental nature remains unknown. I’ll discuss how a broad strategy of searching for dark matter using techniques from particle physics and astronomy maximize our chances of successfully discovering its identity, and what this could mean for future research in particle physics.
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March
| Event Location: HENN 318 | Speaker: Kirit Karkare
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March
| Event Location: BRIM 311 | Speaker: Kamran Kamiri – National Centre for Nuclear Research, Poland
Abstract: In my presentation, I will give an overview of three primary areas that have been my focal research interests at NOMATEN CoE: i) crystal and amorphous plasticity, ii) transport properties of high-entropy alloys (HEAs), and iii) micro-structural informatics. In i), my research has employed statistical physics to unravel the microscopic basis of plasticity based on the collective dynamics of shear transformation zones in amorphous solids as well as dislocations mechanics in crystalline metals.
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March
| Event Location: HENN 200 | Speaker: 6 Incredible Undergraduate Slammers
Science Communication skills are key for success in all sciences! Being able to explain a complex scientific idea, or theory clearly to a general audience can show your mastery of a subject, sell your research, or successfully launch a start-up!
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March
| Event Location: HENN 318 | Speaker: Lynne Jones (Areotek/Rubin Observatory)
Abstract:
Rubin Observatory is on track to start operations of the Legacy Survey of Space and Time (LSST) in fall 2025, setting off a rush of data that will be massive (20TB per night) and nonstop for ten years. The LSST will survey approximately 20,000 square degrees of sky in ugrizy bandpasses, with highly accurate astrometry and photometry, with individual images reaching depths of about 24.5 in r band.
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March
| Event Location: HENN 318 | Speaker: Ismail El Baggari, Harvard Rowland Institute
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March
| Event Location: BUCH D319 (Buchanan Bldg, 1866 Main Mall) | Speaker: Ian MacPhail (PhD student)
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March
| Event Location: HENN 318 | Speaker: John Ruan (Bishop’s University)
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Gravitational wave astronomy is entering a golden era of discovery, and many key science goals of this new frontier rely on 'multi-messenger’ observations that leverage the combination of both 'cosmic messengers' of gravitational waves and light.
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March
| Event Location: HENN 301 | Speaker: Thomas Dumitrescu
Bio:
Thomas Dumitrescu received a B.A. in Physics and Mathematics from Columbia University in 2008, and a Ph.D. in Physics from Princeton University in 2013, under the supervision of Professor Nathan Seiberg at the Institute for Advanced Study.
Before coming to UCLA, he was a five-year postdoctoral fellow at Harvard University.
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March
| Event Location: HENN 318 | Speaker: Sophie Renner
Abstract:
The Standard Model of particle physics cannot be the final word on how to understand fundamental particles theoretically. The missing pieces, intriguing patterns and extreme hierarchies of the Standard Model demand explanations, but any new theory must tread a tightrope of increasingly precise measurements.
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February
| Event Location: HENN 202 | Speaker: Lisa Kewley, Harvard & Smithsonian
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February
| Event Location: HENN 318 | Speaker: Ali Husain
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February
| Event Location: BRIM 311 | Speaker: Ania Bleszynski Jayich
Abstract: Sensors that leverage quantum phenomena to measure physical quantities harbor many attractive features beyond classical sensors. Solid-state quantum sensors, with the nitrogen-vacancy (NV) center in diamond a forefront technology, are particularly attractive for their compatibility with biological and condensed matter systems, offering ultra-high spatial resolution and sensitivity over a wide temperature range, while being quantitative and non-invasive.
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February
| Event Location: HENN 318 | Speaker: Tibor Rakovszky, Bloch Postdoctoral Fellow in Quantum Science and Engineering (Stanford University)
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February
| Event Location: Henn 318 | Speaker: Erik Frieling (PhD student)
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February
| Event Location: BRIM 311 | Speaker: David Goldhaber-Gordon – Stanford University
Abstract: When two atomically-thin layers of a material are stacked one atop each other, with a relative twist angle between them, properties can emerge that bear little resemblance to the behavior of the individual layers. Though much can be predicted and designed about such structures, I will share two vignettes about how my students aimed for a particular behavior but found something quite different.
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February
| Event Location: HENN 318 | Speaker: Nat Tantivasadakarn, Burke Postdoctoral Fellow, Caltech
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February
| Event Location: HENN 318 | Speaker: Shingo Kono
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February
| Event Location: BRIM 311 | Speaker: James Analytis - UC Berkley
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February
| Event Location: HENN 318 | Speaker: Bobby Bickley, Ph.D. candidate, University of Victoria
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February
| Event Location: TRIUMF Auditorium | Speaker: Laura Berzak, Lawrence Livermore National Laboratory
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February
| Event Location: BRIM 311 | Speaker: James McIver– Columbia University
Abstract: Ultrafast optoelectronic circuits offer new opportunities for investigating and controlling the electrical responses of microstructured quantum materials and heterostructures at femtosecond timescales and THz frequencies. Based on metal waveguides and laser-triggered photoconductive switches, these chip-scale circuits can be interfaced to quantum materials to directly probe the ultrafast flow of electrical currents or perform near-field THz spectroscopy on length scales orders of magnitude smaller than the diffraction limit.
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February
| Event Location: Henn 318 | Speaker: Mandana Amiri, Experimental Cosmology Project Manager for CHIME, University of British Columbia & Parham Zarei, PhD candidate, University of British Columbia, in-person
Abstract:
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January
| Event Location: Henn 318 | Speaker: Yuri Levin, Prof. of Physics, Department of Physics, University of Columbia (remote). For more details, please see https://thea.astro.columbia.edu/people/yuri-levin
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January
| Event Location: MSL room 226 with a hybrid option Zoom link: https://ubc.zoom.us/j/3770243649?pwd=Y2VCdXoxM0wyRFhQVWFlQ2RhQWFRQT09&omn=68781685568 Meeting ID: 377 024 3649 Passcode: 514771 | Speaker: Cynthia Shaheen (PhD student)
Abstract: DNA, RNA and proteins, which drive life, have complicated, constantly changing structures. For example, DNA inside cells is supercoiled, and the amount of supercoiling is constantly under flux.
This supercoiling can drive structural transitions, such as AT-rich regions in under-twisted DNA denaturing under physiological conditions.
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January
| Event Location: HENN 318 | Speaker: Dr. Chris Willott, Senior Research Officer at the Herzberg Astronomy & Astrophysics Research Centre
Abstract:
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January
| Event Location: HENN 318 | Speaker: Daniel Brennan
Abstract:
The Callan Rubakov Effect describes the interaction between (massless) fermions and a smooth monopole in 4d gauge theory. In this scenario, the fermions can probe the UV physics inside the monopole core which leads to interesting effects such as proton decay in GUT models. However, the monopole-fermion scattering appears to lead to out-states that are not in the perturbative Hilbert space. In this talk, we will review this issue and propose a new physical mechanism that resolves this long-standing confusion.
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January
| Event Location: HENN 202 | Speaker: Host: Megan Bingham, PHAS Course Coordinator
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January
January
| Event Location: Henn 318 | Speaker: Alan Knee, PhD candidate, LIGO member, University of British Columbia
Abstract:
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January
| Event Location: HENN 318 | Speaker: Dr. Toby Brown, Plaskett Fellow at the Herzberg Astronomy & Astrophysics Research Centre
Abstract:
The Virgo Environment Traced in CO Survey (VERTICO) is an Atacama Large Millimeter/submillimeter Array Large Program that has mapped the distribution and kinematics of star-forming molecular gas across 51 Virgo Cluster satellite galaxies on sub-kpc scales.
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January
| Event Location: Henn 318 and Zoom https://ubc.zoom.us/j/66307083128?pwd=U2hqdXZRWjdnVnE4aEIrWVk2dkhOQT09 Meeting ID: 663 0708 3128 Passcode: 123 One tap mobile +17789072071,,66307083128#,,,,,,0#,,123# Dial by your location +1 778 907 2071 (Vancouver) +1 647 374 4685 (Toronto) +1 647 375 2970 (Toronto) +1 647 375 2971 (Toronto) +1 204 272 7920 (Manitoba) +1 438 809 7799 (Montreal) +1 587 328 1099 (Alberta) +1 613 209 3054 (Ottawa) Join from a videoconferencing system IP: 65.39.152.160 Meeting ID: 663 0708 3128 Passcode: 123 SIP: 66307083128@vn.zmca.us Passcode: 123 | Speaker: Helena Koniar (PhD student)
Abstract: Targeted alpha therapy (TAT) combines an alpha emitting radioisotope with an appropriate biological targeting molecule to selectively bind to cancer cells and deliver highly localised cytotoxic radiation while sparing healthy non-targeted tissues.
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January
| Event Location: HENN 318 | Speaker: Thomas Rennie, UBC Physics & Astronomy
Abstract:
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January
| Event Location: https://ubc.zoom.us/j/67710585936?pwd=cE9kQzEvcHppMjJ4VmI5bkFvSDRpdz09 Passcode: 667047 | Speaker: Justin Poon (PhD student)
Abstract:
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January
| Event Location: https://ubc.zoom.us/j/4747189913?pwd=RHEvdjJ3NWU3TTVCdkZGdHVsWlpOQT09&omn=64712444179 Passcode: 123 | Speaker: Caleb Sample(PhD student)
The complexity of radiotherapy techniques for treating head and neck cancer has significantly advanced over the previous two decades. However, it remains common for patients to finish treatment with a severe loss in salivary function, causing significantly diminished quality of life assessments. The overall goal of research endeavours in this thesis is to develop innovative techniques that lead to better understanding and consideration of salivary glands during head and neck radiotherapy planning.
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January
| Event Location: HENN 318 | Speaker: Smadar Naoz, UCLA
Abstract:
Gravitational wave (GW) emissions from extreme-mass-ratio inspirals (EMRIs) are promising sources for low-frequency GW detectors.
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December
2023
| Event Location: HENN 202 | Speaker: This E&I in PHAS event is in collaboration with the AMS of UBC Sexual Assault Support Centre (SASC), led by SASC educators and outreach team members, including PHAS MSc student Isabelle St-Martin.
About:
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December
2023
| Event Location: BRIM 311 | Speaker: Andrea Young – University of California Santa Barbara
Abstract: The electronic band structure of rhombohedral graphene multilayers hosts van Hove singularities at which the single particle of states diverges. I will discuss experiments in which we use electrostatic gates to tune the chemical potential through these singularities, revealing a cascade of correlated electron phases; notably, both singlet and triplet superconductors are observed proximal to or within generalized ferromagnetic phases where the system spontaneously polarizes into one or more of the spin- and valley isospin flavors.
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December
2023
| Event Location: Hennings 318 | Speaker: Prof. Kipp Cannon, the Research Center for the Early Universe, the University of Tokyo, remote. For more details, see https://www.resceu.s.u-tokyo.ac.jp/~kipp/
Abstract:
I will review constraints on fundamental physics that have been inferred from observations of gravitational waves, and look forward to see what new results might be obtained in the near future, and what might be possible with future generations of gravitational-wave detectors.
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December
2023
| Event Location: HENN 318 | Speaker: Dan Tamayo (Harvey Mudd College)
Abstract:
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November
2023
| Event Location: HENN 202 | Speaker: Jason Holt (TRIUMF/McGill)
Abstract:
What is the mass of the neutrino? Why is there an abundance of matter over antimatter in our universe? And what is dark matter? Strangely enough, answers might very well lie, yet undiscovered, in impossibly rare nuclear decays, infinitely subtle wobblings of nuclei embedded in radioactive molecules, or the faintest recoils of nuclei colliding with dark matter.
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November
2023
| Event Location: Henn 309 | Speaker: Wyatt Reeves: PhD student for Final Defense
Understanding quantum chaos in conformal field theories is extremely important. Chaotic dynamics can explain why so many systems can be studied with statistical mechanics, and why systems reach ``typical’’ states so quickly. Outside of the simplest, highly symmetric systems, all systems are expected to be described by chaotic dynamics; whether and how these dynamics can appear in theories with conformal symmetry is thus essential to further our understanding of most CFTs.
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November
2023
| Event Location: McLeod 3038 | Speaker: Nitin Kaushal- QMI
Abstract: Moiré materials constructed using the transition metal dichalcogenide (TMD) bilayers have been used to simulate the Hubbard model with long range Coulomb interactions procuring the lattice Wigner crystal states at fractional fillings like n=2/3, 1/2, and 1/3. We study the gamma-valley TMD homobilayers which can give rise to the effective moire honeycomb lattices, as shown by recent ab-initio studies.
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November
2023
| Event Location: Hennings 318 | Speaker: Prof. David Kipping, Columbia University, remote. For more details, see http://davidkipping.co.uk/; http://www.youtube.com/coolworldslab
Abstract
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November
2023
| Event Location: HENN 318 | Speaker: Katelin Schutz (McGill University)
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November
2023
| Event Location: HENN 301 | Speaker: Mark Van Raamsdonk (UBC PHAS!)
Abstract:
In this talk, I'll describe how ordinary spacetime might arise from quantum physics (in what's known as the holographic approach to quantum gravity), how our universe might be related to a giant wormhole, and how this picture can lead to predictions for cosmology (such as decreasing dark energy and an eventual big crunch).
Bio:
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