Events
March
2023
| Event Location: HENN 201 | Speaker: Special event: Three Minute Thesis (3MT) academic competition
Three Minute Thesis (3MT)
*On Thursday March 2, 2023 from 4:00 - 5:15pm during the Department Colloquium, in HENN 201*
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March
2023
| Event Location: HENN 318 | Speaker: Dr. Carlos Blanco (Postdoctoral Researcher, Princeton University)
Abstract:
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March
2023
| Event Location: AMPL 311 | Speaker: John Birkbeck (Department of Condensed Matter Physics, Weizmann Institute of Science)
Abstract: In this talk, I will present a new type of scanning probe microscope, the Quantum Twisting Microscope (QTM), capable of performing local quantum interference measurements at a twistable interface between two quantum materials. Its working principle is based on a unique tip made of an atomically-thin two-dimensional material. This tip allows electrons to coherently tunnel into a sample at many locations at once, with quantum interference between these tunneling events, making it a scanning electronic interferometer.
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March
2023
| Event Location: HENN 318 | Speaker: Dr. Matthew Liska
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February
2023
| Event Location: UBC Centre for Brain Health Room 3402, Vancouver Zoom: https://ubc.zoom.us/j/62544295867?pwd=eURLUHJ3K1V6MVpETVpWTVppOGJOQT09 Meeting ID: 625 4429 5867 Passcode: 682315 | Speaker: Adam Dvorak (PhD student)
Myelin water imaging (MWI) is a quantitative magnetic resonance imaging (MRI) technique generally regarded as the most rigorous approach for non-invasive, in-vivo measurement of myelin content.
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February
2023
| Event Location: HENN 318 | Speaker: Dr. Chris Matzner (University of Toronto)
Abstract:
This talk will focus on two somewhat unusual types of shock dynamics associated with core-collapse supernovae:
1. "Bells, not whistles": Some massive stars appear to undergo shock-driven outbursts before their cores collapse. I will show that nonlinear acoustics rules out a standard explanation for how these events are driven, a result that deepens the mystery of their origin.
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February
2023
| Event Location: To be confirmed | Speaker: Dr. Philippe Landry, University of Toronto (remote)
TALK RECORDING AVAILABLE AT: https://drive.google.com/file/d/10NAGUXErm9h3xy59d5tGyJTf_MVsHtSL/view?usp=share_link
Abstract:
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February
2023
| Event Location: HENN 318 | Speaker: Dr. Michelle Kunimoto
Abstract:
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February
2023
| Event Location: HENN 318 | Speaker: Dr. Xue-Yang Song
Abstract:
Quantum electrodynamics in (2+1) D (QED_3) consists of relativistic Dirac fermions strongly interacting with photons. Quantum magnets and electron systems under magnetic fields, meanwhile, represent 2 correlated paradigms in magnetism. We show that from symmetry reasoning, QED_3 emerges as a robust, critical phase both in triangular spin-1/2 magnets (called Dirac spin liquid), and half-filled Chern bands of electrons under periodic magnetic fields.
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February
2023
| Event Location: HENN 201 | Speaker: Dr. Jessie Christiansen (Harvard-Smithsonian Centre for Astrophysics)
Abstract:
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February
2023
| Event Location: HENN 318 | Speaker: Dr. Sam Hadden, Canadian Institute for Theoretical Astrophysics (CITA)
Abstract:
Is the solar system stable? This question has garnered attention from a litany of famous scientists and mathematicians since Isaac Newton but was only properly resolved a little over a decade ago with the advent of computer hardware and algorithms capable of following the dynamical evolution of the planets for billions of years. We now know that the solar system will most likely remain stable for the remainder of the Sun’s main-sequence lifetime, though there is a ~1% chance that Mercury is destabilized and collides with Venus or the Sun.
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February
2023
| Event Location: Henn 318 | Speaker: Marek Szczepanczyk, Postdoctoral associate, University of Florida (remote)
TALK RECORDING AVAILABLE AT: https://drive.google.com/file/d/1l4DQfOrOuK3dQUECHt1DjAeEUpj4ovnF/view?usp=share_link
Abstract:
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February
2023
| Event Location: HENN 201 | Speaker: Dr. Randall G. Hulet (Rice University)
Abstract:
We employ quantum simulation of interesting electronic materials using ultracold 6 Li atoms, a composite fermion, as stand-ins for the electrons Quantum simulation of this kind takes advantage of the capability to adhere to a theoretical model, while the tunability of model parameters enables quantitative comparison with theory.
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February
2023
| Event Location: AMPL 311 | Speaker: Dmitri Pikulin (Microsoft Station Q)
Abstract:
I will discuss the theory and data analysis techniques behind the recent study searching for Majorana zero modes. I will describe how the transport techniques can help identify the boundary and bulk signatures of the topological phase. The analytical insight is confirmed by extensive numerical study and data analysis. I will finish with an example of an experimental observation.
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February
2023
| Event Location: HENN 318 | Speaker: Dr. Katarina Chatziioannou (Caltech)
Abstract:
Detections of neutron stars in binaries through gravitational waves offer a novel way to probe the properties of extremely dense matter. In this talk I will describe the properties of the signals we have observed, what they have already taught us, and what we expect to learn in the future. I will also discuss how information from gravitational waves can be combined and compared against other astrophysical and terrestrial probes of neutron star matter to unveil to the properties of the most dense material objects that we know of.
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February
2023
| Event Location: Henn 318 | Speaker: Dr. Beverly Berger, Stanford University LIGO Group (remote)
TALK RECORDING AVAILABLE AT: https://drive.google.com/file/d/1PhFE8tQS_fp_SbSI3S0f2Gz8yTwXVsdp/view?usp=share_link
Abstract:
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February
2023
| Event Location: HENN 201 | Speaker: Ludo van Waerbeke (UBC)
Abstract:
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February
2023
| Event Location: BRIM 311 | Speaker: Patrick Ledwith – Harvard University
Patrick Ledwith – Harvard University
Title: Vortexability Chern bands in Twisted and Strained Graphene
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January
2023
| Event Location: HENN 318 | Speaker: Prof. Emily Levesque (University of Washington)
Abstract:
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January
2023
| Event Location: Henn 318 | Speaker: Alan Knee, PhD Candidate, University of British Columbia
TALK RECORDING AVAILABLE AT: https://drive.google.com/file/d/12vZ2TNlzaWh3DPdC90Q_vty9crJumDQ3/view?usp=share_link
Abstract:
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January
2023
| Event Location: Zoom only | Speaker: Dr. Zahra Hazari (Florida International University)
Abstract:
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January
2023
| Event Location: BRIM 311 | Speaker: Dr. Alannah Hallas
Dr. Alannah Hallas - UBC
Title: Entropy Engineering and Tunable Magnetic Order in the Spinel High Entropy Oxide
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January
2023
| Event Location: https://ubc.zoom.us/j/64229865355?pwd=d2RFMlh2eGlUUThOTW8zN0RIMGpFUT09 | Speaker: Rafael Haenel (PhD student)
When a continuous symmetry is spontaneously broken, collective modes emerge. Usually, their spectrum is dominated by the low-energy physics of massless Goldstone modes. Superconductors, that break U(1) symmetry, are different. Here, the Goldstone boson is gapped out due to the Anderson-Higgs mechanism. The superconducting condensate can therefore host a zoo of massive collective excitations that are stable for lack of a gapless decay channel.
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January
2023
| Event Location: HENN 318 | Speaker: Dr. Emanuele Berti (Johns Hopkins University)
Abstract:
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January
2023
| Event Location: Henn 318 | Speaker: Dr. Tessa Baker, Royal Society University Research Fellow, Proleptic Reader in Cosmology, Queen Mary University of London
Mervyn Chan (mervync@phas.ubc.ca)
**We welcome everyone to this event, from upper-level undergraduate students, post-docs and faculty to the general public. Come join us!**
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January
2023
| Event Location: HENN 201 | Speaker: Dr. Lia Medeiros, Princeton
Abstract:
New horizon-scale images of the Galactic Center black hole Sagittarius A* (Sgr A*) recently published by the Event Horizon Telescope (EHT) allow for new strong-field tests of the Kerr metric in a previously unexplored regime. I will discuss the recent EHT observations of Sgr A* with a particular focus on how these new results can be used to test fundamental physics. I will briefly touch upon the earlier M87 results as well.
Bio:
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January
2023
| Event Location: BRIM 311 | Speaker: Prof. Mark Rudner - University of Washington
Prof. Mark Rudner - University of Washington
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January
2023
| Event Location: Henn 318 | Speaker: Silke Weinfurtner, former professor at UBC, professor at Nottingham University, PI of QSimFP program. A theorist who turned into an experimentalist
Abstract:
We will discuss experimental results studying the wave-vortex interaction arising from rotating fluid
and superfluid flows. The dynamical equation describing the wave-vortex interaction can be mapped to
scalar fields propagating on an effective rotating black hole. This opens the possibility of studying a
variety of rotating black hole processes in hydrodynamic systems. I will summarise our experimental
efforts resulting in the detection of geodesic motion, quasi-normal modes and superradiance in normal
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January
2023
| Event Location: Henn 318 | Speaker: Dr. Niayesh Afshordi (University of Waterloo and Perimeter Institute for Theoretical Physics)
Abstract:
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January
2023
| Event Location: HENN 318 | Speaker: Ashim Sen Gupta, PhD student, Queen Mary University of London
TALK RECORDING AVAILABLE AT: https://drive.google.com/file/d/15V37wrgQQb0mN6MrBIZ9dQhZZeqYgWDI/view?usp=share_link
Abstract:
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January
2023
| Event Location: https://ubc.zoom.us/j/63397566153?pwd=MEgyK0JvaFIyb1JLSWxrV3I5UWo3QT09 | Speaker: Yukiya Saito(PhD student)
Abstract:
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December
2022
| Event Location: HENN 318 | Speaker: Dr. Daniel C. Jacobs (Arizona State University)
Abstract:
Being an introduction and a status report on HERA the 21cm array, the SPARCS M-dwarf exoplanet-host flare monitor cubesat, and space-based testing of 21cm instruments.
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December
2022
| Event Location: HENN 318 | Speaker: Dr. Heather Fong, University of British Columbia
TALK RECORDING AVAILABLE AT: https://drive.google.com/file/d/1ozuIcU_1hSFvQL-3egYoTBEkIIlMsbSi/view?usp=share_link
Abstract:
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December
2022
| Event Location: Henn 318 | Speaker: Pranav Garg(PhD student)
This thesis describes applications of computer simulation and bioinformatics techniques in conjunction with experiments to understand various biological systems.
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December
2022
| Event Location: https://ubc.zoom.us/j/62811600818?pwd=WlJyS09SQ0gva3EwZ1N3dmNDdmZlQT09 Passcode: 459642 | Speaker: PhD student : Sarah Morris
Myelin, the lipid-rich sheath which wraps around axons, has complex and unique physical and chemical properties which can be used to produce magnetic resonance imaging (MRI) contrast. Developing MRI to quantitatively measure myelin is vital for monitoring the brain and spinal cord in health and disease. This thesis explores four MRI techniques sensitive to myelin; myelin water imaging (MWI), magnetisation transfer (MT), inhomogeneous magnetisation transfer (ihMT) and diffusion imaging.
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December
2022
| Event Location: HEBB 114 | Speaker: Dr. Arzu Sardarli (First Nations University of Canada)
Abstract:
This presentation is based on materials collected within my research and community-based projects at the First Nations University of Canada and targets three groups of audience: learners, educators and researchers. The materials have been created in three formats: publications, Power Point Presentations and Videos. My intention is to address the importance, doability and advantage of the holistic way of teaching the Science and Mathematics in an example of the integration of modern Science and Indigenous Knowledge elements.
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December
2022
| Event Location: HENN 318 | Speaker: Dr. Mukremin Kilic, University of Oklahoma
Abstract:
ESA's Gaia mission has provided distances to around 1.5 billion stars and revolutionized stellar astrophysics. Gaia has finally revealed the population
of faint white dwarf stars in the solar neighborhood. We use this dataset to answer fundamental questions about the nature of white dwarfs, including their
mass distribution, cooling physics (crystallization), and ultracool white dwarfs. I will highlight the current challenges in the physics of white dwarf stars and
our efforts to solve them.
Bio:
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December
2022
| Event Location: Hennings 318 | Speaker: Adekunle Aina, PhD student
Protein aggregation-related diseases, in particular neurodegenerative diseases, are characterized by the aberrant perturbation of the underlying protein conformational ensemble. Effectively presenting epitopes using vaccines, to raise conformationally selective antibodies, is a central problem in treating neurodegenerative diseases.
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December
2022
| Event Location: HEBB 114 | Speaker: Dr. Reuven Gordon (UVic)
Abstract:
There is a new class of technologies emerging for observing unmodified proteins in action and at the single molecule level. This colloquium will give an introduction to our nanoaperture optical tweezer approach and overview the developments from other groups also working in the area. I will also review our work on using these nanoapertures to isolate single Erbium emitters in nanocrystals for single photon sources at fiber optic communication wavelengths, and to study resonant energy transfer between two perovskite quantum dots.
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December
2022
| Event Location: BRIM 311 | Speaker: Thomas Scaffidi - University of California Irvine
Thomas Scaffidi - University of California Irvine
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November
2022
| Event Location: HENN 318 | Speaker: Dr. Chris Hayward, Centre for Computational Astrophysics, NY
Abstract:
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November
2022
| Event Location: HENN 318 | Speaker: Prof. Jess McIver, University of British Columbia
TALK RECORDING AVAILABLE AT: https://drive.google.com/file/d/1is7783zB9tYQksLkmcAZ5E5NQu7mZvOP/view
Abstract
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November
2022
| Event Location: HEBB 114 | Speaker: Dr. Kate Pachal (TRIUMF)
Link to join remotely - look for today's date. The live stream will start at 4:00pm.
Abstract:
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November
2022
| Event Location: BRIM 311 | Speaker: Long Ju
Long Ju – MIT Physics Department
Title: Electron Correlation and Coupling with Phonon in the Trilayer Graphene/hBN Moire Superlattice
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November
2022
| Event Location: https://ubc.zoom.us/j/61408939131?pwd=cGxvZDU4Zi9oTmVySjg1RTN2T1E5QT09, Passcode: 524103 | Speaker: Peter Gysbers, PhD student
Atomic nuclei exhibit many phenomena not limited to excited states, decays, reactions, and clustering. Nuclear processes control the evolution of stars and explain the abundances of chemical elements in the universe. Nuclear physics can be used to answer fundamental questions about underlying particle physics and cosmology, such as the symmetry between matter and antimatter or the nature of neutrinos.
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November
2022
| Event Location: HENN 318 | Speaker: Dr. Ashish Mahabal, Caltech
Abstract:
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November
2022
| Event Location: HENN 318 | Speaker: Danny Fusco, MSc student, University of British Columbia
Abstract:
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November
2022
| Event Location: HEBB 114 | Speaker: Joel Primack (University of California Santa Cruz)
Link to join remotely - look for today's date. The live stream will start at 4:00pm.
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November
2022
| Event Location: BRIM 311 | Speaker: Professor Kai-Mei Fu
Professor Kai-Mei Fu - University of Washington
Title: Quantum point defects: Can these defects be less defective?
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November
2022
| Event Location: HENN 318 | Speaker: Lars Künkel (PHAS)
Abstract:
Pulsars are rotating neutron stars which emit faint beams of electromagnetic radiation. In pulsar searches large effort is expended to discover these pulses in time- and frequency-resolved data from radio telescopes. Simultaneously recovering the frequency-dependent delay (dispersion) and the periodicity of the signal is a complex and demanding task, which is further exacerbated by the presence of various types of radio-frequency interference (RFI) and observing-system effects.
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