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May

| Event Location: Connect via zoom | Speaker: Brent Seales (U Kentucky)

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Add to Calendar 2021-05-20T16:00:00 2021-05-20T17:00:00 Reading the Invisible Library: Virtual Unwrapping and the Scroll from En-Gedi Abstract Event Location: Connect via zoom

May

Add to Calendar 2021-05-19T12:30:00 2021-05-19T14:30:00 Departmental Doctoral Oral Examination (Thesis Title: “A study of the quantum-to-classical transition in gravity, and a study of the consequences of constraints in gauge theory path-integrals”) Abstract: Event Location: via Zoom

May

| Event Location: Connect via Zoom | Speaker: David Morrissey (TRIUMF)

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Cosmic strings are macroscopic, approximately one-dimensional objects that arise in many theories of new fundamental physics. If they are created in the early universe after inflation, they form a network of horizon-length long strings and smaller closed loops.

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Add to Calendar 2021-05-19T11:00:00 2021-05-19T12:00:00 Looking Back in Time with Gravitational Waves from Cosmic Strings Cosmic strings are macroscopic, approximately one-dimensional objects that arise in many theories of new fundamental physics. If they are created in the early universe after inflation, they form a network of horizon-length long strings and smaller closed loops. Event Location: Connect via Zoom

May

| Event Location: Online | Speaker: Mobin Shakeri

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Majorana fermions have been an important subject of research for the past few years in the field of condensed matter physics. After the realization of Majorana zero mode (MZM) in a Kitaev-chain, studies on the systems of many-body MZMs have been increased. Throughout the previous research, it was found that a few of the Majorana zero mode 1-dimensional chain models possess a Tricritical Ising model conformal field theory as a critical point in their phase diagram.

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Add to Calendar 2021-05-19T10:00:00 2021-05-19T11:00:00 Supersymmetry On a Strongly-Interacting Majorana Zero Mode Chain Majorana fermions have been an important subject of research for the past few years in the field of condensed matter physics. After the realization of Majorana zero mode (MZM) in a Kitaev-chain, studies on the systems of many-body MZMs have been increased. Throughout the previous research, it was found that a few of the Majorana zero mode 1-dimensional chain models possess a Tricritical Ising model conformal field theory as a critical point in their phase diagram. Event Location: Online

May

| Event Location: via Zoom | Speaker: MARYAM SHIRMOHAMMAD

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Add to Calendar 2021-05-14T10:00:00 2021-05-14T12:00:00 Departmental Doctoral Oral Examination (Thesis Title: “New Raman Scattering Enhancement Methods with Potential for Improving the Detection of Breath VOCs”) Abstract: Event Location: via Zoom

May

| Event Location: Connect via zoom | Speaker: Liane Gabora (UBC Okanagan)

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Many branches of mathematics were first used to describe some aspect of the physical world, and later applied more broadly in other fields. It is in this spirit that the field of quantum cognition draws upon the formalisms of quantum mechanics. Quantum cognition does not posit that phenomena at the quantum level affect the brain; rather, it uses abstract formal structures that, as it happens, found their first application in quantum mechanics.

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Add to Calendar 2021-05-13T16:00:00 2021-05-13T17:00:00 Application of Generalized Quantum Formalisms in Cognitive Science and Humor Research Many branches of mathematics were first used to describe some aspect of the physical world, and later applied more broadly in other fields. It is in this spirit that the field of quantum cognition draws upon the formalisms of quantum mechanics. Quantum cognition does not posit that phenomena at the quantum level affect the brain; rather, it uses abstract formal structures that, as it happens, found their first application in quantum mechanics. Event Location: Connect via zoom

May

| Event Location: Connect via zoom | Speaker: Eve Armstrong (NYIT)

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The multi-messenger astrophysics of compact objects presents a vast range of environments where neutrino flavor transformation may occur and may be important for nucleosynthesis and a detected neutrino signal.  Developing efficient techniques for surveying flavor evolution solution spaces in these environments, which augment existing computational tools, could leverage progress in this field. To this end, we explore statistical data assimilation (SDA) to identify solutions to a small-scale model of neutrino flavor transformation.

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Add to Calendar 2021-05-06T16:00:00 2021-05-06T17:00:00 Optimization predicts neutrino flavor evolution, a junior prom date, and the best means to escape from an awkward party The multi-messenger astrophysics of compact objects presents a vast range of environments where neutrino flavor transformation may occur and may be important for nucleosynthesis and a detected neutrino signal.  Developing efficient techniques for surveying flavor evolution solution spaces in these environments, which augment existing computational tools, could leverage progress in this field. To this end, we explore statistical data assimilation (SDA) to identify solutions to a small-scale model of neutrino flavor transformation. Event Location: Connect via zoom

May

| Event Location: via Zoom | Speaker: CHENGSHU LI

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Add to Calendar 2021-05-05T15:30:00 2021-05-05T17:30:00 Departmental Doctoral Oral Examination (Thesis Title: “Low-dimensional quantum systems from novel constituents”) Abstract: Event Location: via Zoom

May

| Event Location: Connect via Zoom | Speaker: Jocelyn Read, California State University (Fullerton)

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Astronomical observations of neutron stars inform our understanding of matter at the highest densities. Already, we have used the gravitational-wave data of GW170817 - the first signal from merging neutron stars - to constrain the equation of state of dense matter in neutron stars.

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Add to Calendar 2021-05-05T11:00:00 2021-05-05T12:00:00 Neutron stars as gravitational-wave sources: dense matter and stellar mass Astronomical observations of neutron stars inform our understanding of matter at the highest densities. Already, we have used the gravitational-wave data of GW170817 - the first signal from merging neutron stars - to constrain the equation of state of dense matter in neutron stars. Event Location: Connect via Zoom

May

| Event Location: Connect via zoom | Speaker: Mike Lund (Caltech-IPAC/NExScI)

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The calculated planet radii for TESS Objects of Interest (TOIs) presume that the stellar flux collected is only coming from known stars. However, any undetected stellar companions will provide additional flux and result in the transit depth being underestimated, leading to the planet radius also being underestimated. Radial velocity follow-up can identify companion stars on short orbits, and high-resolution imaging can identify companion stars with sufficient angular separations.

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Add to Calendar 2021-05-03T15:00:00 2021-05-03T16:00:00 Reducing Errors in Derived Planetary Radii Caused by Undetected Stellar Companions via Adaptive Optics The calculated planet radii for TESS Objects of Interest (TOIs) presume that the stellar flux collected is only coming from known stars. However, any undetected stellar companions will provide additional flux and result in the transit depth being underestimated, leading to the planet radius also being underestimated. Radial velocity follow-up can identify companion stars on short orbits, and high-resolution imaging can identify companion stars with sufficient angular separations. Event Location: Connect via zoom

April

| Event Location: Connect via zoom | Speaker: Erica Carlson (Purdue)

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Abstract: Condensed matter is the science of stuff you can touch: if you can hold it in your hand, it's a condensed matter system.  Phases of matter and phase transitions are central concepts in condensed matter physics.  Think how important the solid, liquid, and vapor phases of water are to human society.  But there are many more phases of matter and phase transitions than these three!  From the liquid crystal displays of our computer screens, to the foams of bread and shaving cream, the suspension we know as milk, and the granular matter known as peanut butter, phases beyond the simple s

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Add to Calendar 2021-04-29T16:00:00 2021-04-29T17:00:00 New phases of matter in quantum materials Abstract: Condensed matter is the science of stuff you can touch: if you can hold it in your hand, it's a condensed matter system.  Phases of matter and phase transitions are central concepts in condensed matter physics.  Think how important the solid, liquid, and vapor phases of water are to human society.  But there are many more phases of matter and phase transitions than these three!  From the liquid crystal displays of our computer screens, to the foams of bread and shaving cream, the suspension we know as milk, and the granular matter known as peanut butter, phases beyond the simple s Event Location: Connect via zoom

April

| Event Location: Zoom link in description | Speaker: Kristan Temme - IBM

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April 29, Thu 10am

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Add to Calendar 2021-04-29T10:00:00 2021-04-29T11:00:00 CM Seminar - A review and recent progress in quantum error - mitigation April 29, Thu 10am Event Location: Zoom link in description

April

| Event Location: Connect via Zoom | Speaker: David Wakeham, UBC

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Quantum gravity is hard, but it's not the end of the world. Or is it? In this talk, I'll give a high-level overview of recent work involving end-of-the-world branes in AdS/CFT. Gravitationally, these branes are simple hypersurfaces cutting off spacetime.

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Add to Calendar 2021-04-28T11:00:00 2021-04-28T12:00:00 Apocalyptic quantum gravity Quantum gravity is hard, but it's not the end of the world. Or is it? In this talk, I'll give a high-level overview of recent work involving end-of-the-world branes in AdS/CFT. Gravitationally, these branes are simple hypersurfaces cutting off spacetime. Event Location: Connect via Zoom

April

| Event Location: via Zoom | Speaker: SHUAILIANG GE

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Add to Calendar 2021-04-27T13:00:00 2021-04-27T15:00:00 Departmental Doctoral Oral Examination (Thesis Title: “Axion Quark Nugget Dark Matter Model: Developments in Model Building and Observations”) Abstract: Event Location: via Zoom

April

| Event Location: Connect via zoom | Speaker: Abigail Crites (Toronto)

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I will describe how we use mm-wavelength instruments (both spectrometers and photometers) to explore our universe across cosmic time and to probe fundamental physics. I will discuss how we seek to understand the epoch of reionization, star formation across cosmic time, and cosmology using the cosmic microwave background (probing inflation and neutrino physics), and discuss the development of instrumentation and data analysis tools to study these areas. I will focus on TIME, a pathfinder instrument I am leading for studying reionization with mm-wavelength line intensity mapping.

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Add to Calendar 2021-04-26T15:00:00 2021-04-26T16:00:00 Innovative Approaches in mm-Wavelength Cosmology: From Inflation to the Epoch of Reionization and Beyond I will describe how we use mm-wavelength instruments (both spectrometers and photometers) to explore our universe across cosmic time and to probe fundamental physics. I will discuss how we seek to understand the epoch of reionization, star formation across cosmic time, and cosmology using the cosmic microwave background (probing inflation and neutrino physics), and discuss the development of instrumentation and data analysis tools to study these areas. I will focus on TIME, a pathfinder instrument I am leading for studying reionization with mm-wavelength line intensity mapping. Event Location: Connect via zoom

April

| Event Location: Connect via zoom | Speaker: David Kaiser (MIT)

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Abstract: For decades, physicists have conducted experimental tests of quantum entanglement, a phenomenon that Albert Einstein once dismissed as "spooky action at a distance." Despite Einstein's misgivings, the experiments have consistently found results compatible with quantum theory; today entanglement is at the heart of next-generation devices like quantum computers and quantum encryption. Yet every experimental test has been subject to one or more "loopholes," which (in principle) could account for the results even in the absence of genuine quantum entanglement.

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Add to Calendar 2021-04-22T16:00:00 2021-04-22T17:00:00 Cosmic Bell Experiments: Using Quasars to Test Quantum Theory Abstract: For decades, physicists have conducted experimental tests of quantum entanglement, a phenomenon that Albert Einstein once dismissed as "spooky action at a distance." Despite Einstein's misgivings, the experiments have consistently found results compatible with quantum theory; today entanglement is at the heart of next-generation devices like quantum computers and quantum encryption. Yet every experimental test has been subject to one or more "loopholes," which (in principle) could account for the results even in the absence of genuine quantum entanglement. Event Location: Connect via zoom

April

| Event Location: via Zoom | Speaker: DEREK FUJIMOTO

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Add to Calendar 2021-04-22T13:00:00 2021-04-22T15:00:00 Departmental Doctoral Oral Examination (Thesis Title: “The Interfacial Dynamics of Amorphous Materials as Revealed By β-NMR Measurements and Molecular Simulations”) Abstract: Event Location: via Zoom

April

| Event Location: via Zoom | Speaker: FAN YANG

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Add to Calendar 2021-04-22T10:00:01 2021-04-22T12:00:00 Departmental Doctoral Oral Examination (Thesis Title: “Topological quantum phase transitions and topological quantum criticality in superfluids and superconductors”) Abstract: Event Location: via Zoom

April

| Event Location: Zoom link in description | Speaker: Julia Stähler (Department of Chemistry, Humboldt-Universiät zu Berlin and Fritz Haber Institute of the Max Planck Society)

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Add to Calendar 2021-04-22T10:00:00 2021-04-22T11:00:00 CM Seminar - ZnO: Ultrafast generation and decay of a surface metal https://ubc.zoom.us/j/64183011430?pwd=U2lFNXEwSmlBRWVBdTR5OG1ZdlVSZz09 Meeting ID: 641 8301 1430 Passcode: 113399 Event Location: Zoom link in description

April

| Event Location: via Zoom | Speaker: AMY QU

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Add to Calendar 2021-04-20T14:00:00 2021-04-20T16:00:00 Departmental Doctoral Oral Examination (Thesis Title: “Atomic modification of graphene on silicon carbide: adsorption and intercalation”) Abstract: Event Location: via Zoom

April

| Event Location: Connect via zoom | Speaker: Ting Li (Carnegie)

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The Southern Stellar Stream Spectroscopic Survey (S5) is an ongoing spectroscopic program that maps the newly discovered stellar streams with the fiber-fed AAOmega spectrograph on the Anglo-Australian Telescope (AAT). S5 is the first systematic program pursuing a complete census of known streams in the Southern Hemisphere, providing a uniquely powerful sample for understanding the building blocks of the Milky Way's stellar halo, the progenitors and formation of stellar streams, the mass and shape of the Milky Way's halo, and ultimately the nature of dark matter.

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Add to Calendar 2021-04-19T15:00:00 2021-04-19T16:00:00 The Southern Stellar Stream Spectroscopic Survey: Overview and Latest Science Results The Southern Stellar Stream Spectroscopic Survey (S5) is an ongoing spectroscopic program that maps the newly discovered stellar streams with the fiber-fed AAOmega spectrograph on the Anglo-Australian Telescope (AAT). S5 is the first systematic program pursuing a complete census of known streams in the Southern Hemisphere, providing a uniquely powerful sample for understanding the building blocks of the Milky Way's stellar halo, the progenitors and formation of stellar streams, the mass and shape of the Milky Way's halo, and ultimately the nature of dark matter. Event Location: Connect via zoom

April

| Event Location: Connect via zoom | Speaker: David Hertzog (U Washington)

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One of the most promising ways of searching for evidence of physics beyond the standard model is through precision measurements of the so-called "g-factor" of the muon. Twenty years ago, the Brookhaven experiment that measured the muon’s anomalous magnetic moment aμ = (g-2)/2 completed its data-taking campaign.  When the final analyses were published a few years later, the result differed by more than 2 standard deviations (σ) from the concurrent standard model (SM) prediction.  Alas, this felt like a rotten situation to be in, one that had to be resolved one way or the other.

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Add to Calendar 2021-04-15T16:00:00 2021-04-15T17:00:00 First Results from the Fermilab Muon g-2 Experiment! One of the most promising ways of searching for evidence of physics beyond the standard model is through precision measurements of the so-called "g-factor" of the muon. Twenty years ago, the Brookhaven experiment that measured the muon’s anomalous magnetic moment aμ = (g-2)/2 completed its data-taking campaign.  When the final analyses were published a few years later, the result differed by more than 2 standard deviations (σ) from the concurrent standard model (SM) prediction.  Alas, this felt like a rotten situation to be in, one that had to be resolved one way or the other. Event Location: Connect via zoom

April

| Event Location: Zoom link in description | Speaker: Matthieu Le Tacon - Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology

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Abstract: External control of electronic phases in correlated-electron materials is a long-standing challenge of condensed-matter research. In the recent years it has been realized that the underlying crystal lattice was more than a mere spectator and could be used as an insightful tuning knob.

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Add to Calendar 2021-04-15T10:00:00 2021-04-15T11:00:00 CM Seminar - Pressure Control of Competing Orders in Superconductors Abstract: External control of electronic phases in correlated-electron materials is a long-standing challenge of condensed-matter research. In the recent years it has been realized that the underlying crystal lattice was more than a mere spectator and could be used as an insightful tuning knob. Event Location: Zoom link in description

April

| Event Location: Connect via zoom | Speaker: Sam Guns (UC Berkeley)

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Large-area transient surveys are a powerful source of information on a wide class of high-energy astrophysical objects, including gamma-ray burst afterglows, the jet launch area of active galactic nuclei, tidal-disruption events, and stellar flares. Current transient surveys operate at nearly every wavelength from gamma rays through radio, but the millimeter wavelength range is comparatively unexplored. However, current generation cosmic microwave observatories have the necessary cadence and daily sensitivity to fill this millimeter-wave gap.

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Add to Calendar 2021-04-12T15:00:00 2021-04-12T16:00:00 Exploring The Transient Sky At Millimeter Wavelengths With SPT-3G Large-area transient surveys are a powerful source of information on a wide class of high-energy astrophysical objects, including gamma-ray burst afterglows, the jet launch area of active galactic nuclei, tidal-disruption events, and stellar flares. Current transient surveys operate at nearly every wavelength from gamma rays through radio, but the millimeter wavelength range is comparatively unexplored. However, current generation cosmic microwave observatories have the necessary cadence and daily sensitivity to fill this millimeter-wave gap. Event Location: Connect via zoom

April

| Event Location: Connect via zoom | Speaker: Eugenia Etkina (Rutgers)

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Many years ago (in 2004), the Rutgers University physics education research group devised a list of most common processes that physicists engage in when creating and applying physics knowledge to operationalize the vague notion of “critical thinking” that we wish our students to develop. This list was based on the observations and interviews of practicing physicists and the studies of the history of physics. The list became the list of "scientific abilities" that students can develop when taking physics courses.

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Add to Calendar 2021-04-08T16:00:00 2021-04-08T17:00:00 What are scientific abilities and how to help students develop them? Many years ago (in 2004), the Rutgers University physics education research group devised a list of most common processes that physicists engage in when creating and applying physics knowledge to operationalize the vague notion of “critical thinking” that we wish our students to develop. This list was based on the observations and interviews of practicing physicists and the studies of the history of physics. The list became the list of "scientific abilities" that students can develop when taking physics courses. Event Location: Connect via zoom

April

| Event Location: via Zoom | Speaker: ÉTIENNE LANTAGNE-HURTUBISE

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Add to Calendar 2021-04-08T14:00:00 2021-04-08T16:00:00 Departmental Doctoral Oral Examination (Thesis Title: “Holographic quantum matter: toy models and physical platformsr”) Abstract: Event Location: via Zoom

April

| Event Location: Zoom link in description | Speaker: Anthony K. Cheetham - Materials Research Laboratory, UCSB

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CM Seminar - Thu, April 8th 10am

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Add to Calendar 2021-04-08T10:00:00 2021-04-08T11:00:00 CM Seminar - Recent Developments in Hybrid and Inorganic Perovskite Halides CM Seminar - Thu, April 8th 10am Event Location: Zoom link in description

April

| Event Location: Connect via zoom | Speaker: Douglas Scott (UBC)

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1st April has traditionally been a day for japes and high jinks in many realms of life - with science not being entirely excluded! In observance of this day I will review the use of humour in physics and astronomy, focusing on some specific examples, particularly those involving April Fool's Day.

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Add to Calendar 2021-04-01T16:00:00 2021-04-01T17:00:00 Physics Pranks and Astronomical Antics 1st April has traditionally been a day for japes and high jinks in many realms of life - with science not being entirely excluded! In observance of this day I will review the use of humour in physics and astronomy, focusing on some specific examples, particularly those involving April Fool's Day. Event Location: Connect via zoom

April

| Event Location: Zoom link in description | Speaker: Jacob Taylor – University of Maryland

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Add to Calendar 2021-04-01T10:00:00 2021-04-01T11:00:00 CM Seminar - Frontiers in Quantum Information Science https://ubc.zoom.us/j/64183011430?pwd=U2lFNXEwSmlBRWVBdTR5OG1ZdlVSZz09 Meeting ID: 641 8301 1430 Passcode: 113399 Event Location: Zoom link in description

March

| Event Location: Connect via Zoom | Speaker: Colby DeLisle (UBC)

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Soft factorization has been shown to hold to sub-leading order in QED and to sub-sub-leading order in perturbative quantum gravity, with various loop and non-universal corrections that can be found. In a recent paper, we show that all terms factorizing at tree level can be uniquely identified as boundary terms that exist already in the classical expressions for the electric current and stress tensor of a point particle.

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Add to Calendar 2021-03-31T11:00:00 2021-03-31T12:00:00 Sub-leading Soft Photons and Gravitons Soft factorization has been shown to hold to sub-leading order in QED and to sub-sub-leading order in perturbative quantum gravity, with various loop and non-universal corrections that can be found. In a recent paper, we show that all terms factorizing at tree level can be uniquely identified as boundary terms that exist already in the classical expressions for the electric current and stress tensor of a point particle. Event Location: Connect via Zoom

March

| Event Location: Connect via zoom | Speaker: Lloyd Knox (UC Davis)

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The most precise of the direct measurements of the current rate of cosmic expansion (the Hubble constant) is inconsistent with the even more precise, but indirect, model-dependent inferences. In particular the Riess et al. (2020) measurement is more than four standard deviations higher than the inference based on the standard cosmological model, with its free parameters constrained by Planck satellite observations of the cosmic microwave background.

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Add to Calendar 2021-03-29T15:00:00 2021-03-29T16:00:00 The Quest for High Hubble Constant Harmony The most precise of the direct measurements of the current rate of cosmic expansion (the Hubble constant) is inconsistent with the even more precise, but indirect, model-dependent inferences. In particular the Riess et al. (2020) measurement is more than four standard deviations higher than the inference based on the standard cosmological model, with its free parameters constrained by Planck satellite observations of the cosmic microwave background. Event Location: Connect via zoom

March

| Event Location: via Zoom | Speaker: EDWARD ASHTON

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Add to Calendar 2021-03-26T12:00:00 2021-03-26T14:00:00 Departmental Doctoral Oral Examination (Thesis Title: “The search for jovian and saturnian irregular moons and a study of their luminosity functions”) Abstract: (please see this link) Event Location: via Zoom

March

| Event Location: Connect via zoom | Speaker: Paul Corkum (U Ottawa)

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An electron that multiphoton ionizes is immediately subject to the light's electric field that will control its short-term future.  This control enables a gas of atoms to produce intense VUV or soft X-ray beams.  Since we can precisely control the infrared beam, we can synthesize attosecond soft X-ray pulses - pulses that are the shortest controlled events ever systematically produced.  For a complex atom (such as xenon), the recollision electron shares its energy in any multi-electron interaction.

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Add to Calendar 2021-03-25T16:00:00 2021-03-25T17:00:00 Attosecond Science An electron that multiphoton ionizes is immediately subject to the light's electric field that will control its short-term future.  This control enables a gas of atoms to produce intense VUV or soft X-ray beams.  Since we can precisely control the infrared beam, we can synthesize attosecond soft X-ray pulses - pulses that are the shortest controlled events ever systematically produced.  For a complex atom (such as xenon), the recollision electron shares its energy in any multi-electron interaction. Event Location: Connect via zoom

March

| Event Location: Zoom link in description | Speaker: Xiaodong Xu, Department of Physics, Department of Materials Science and Engineering

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CM Seminar - Thu, March 25, 10am (PST)
https://ubc.zoom.us/j/64183011430?pwd=U2lFNXEwSmlBRWVBdTR5OG1ZdlVSZz09

Meeting ID: 641 8301 1430

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Add to Calendar 2021-03-25T10:00:00 2021-03-25T11:00:00 CM Seminar - Spin, Charge, and Phonon Coupling Effects in 2D Materials CM Seminar - Thu, March 25, 10am (PST) https://ubc.zoom.us/j/64183011430?pwd=U2lFNXEwSmlBRWVBdTR5OG1ZdlVSZz09 Meeting ID: 641 8301 1430 Event Location: Zoom link in description

March

| Event Location: via Zoom | Speaker: Brandon Stuart

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Add to Calendar 2021-03-25T09:00:00 2021-03-25T11:00:00 Final PhD Oral Examination (Thesis Title: “Scanning Tunnelling Microscopy of Topological Materials”) Abstract: Event Location: via Zoom

March

| Event Location: Connect via zoom | Speaker: Susan Clark (Princeton IAS)

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Magnetic fields thread our Milky Way Galaxy, influencing interstellar physics from cosmic ray propagation to star formation. The magnetic interstellar medium is also a formidable foreground for experimental cosmology, particularly for the quest to find signatures of inflation in the polarized cosmic microwave background (CMB). Despite its importance across scientific realms, the structure of the Galactic magnetic field is not well understood.

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Add to Calendar 2021-03-22T15:00:00 2021-03-22T16:00:00 The Magnetic Milky Way in Three Dimensions Magnetic fields thread our Milky Way Galaxy, influencing interstellar physics from cosmic ray propagation to star formation. The magnetic interstellar medium is also a formidable foreground for experimental cosmology, particularly for the quest to find signatures of inflation in the polarized cosmic microwave background (CMB). Despite its importance across scientific realms, the structure of the Galactic magnetic field is not well understood. Event Location: Connect via zoom

March

| Event Location: via Zoom | Speaker: GIACOMO GALLINA

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Add to Calendar 2021-03-22T09:00:00 2021-03-22T11:00:00 Final PhD Oral Examination (Thesis Title: “Development of a Single Vacuum Ultra-Violet Photon-Sensing Solution for nEXO”) Event Location: via Zoom

March

| Event Location: Connect via zoom | Speaker: Juan Maldacena (Princeton IAS)

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Black holes are interesting spacetime configurations predicted by general relativity. When quantum mechanics is taken into account, black holes are found to emit thermal radiation, called "Hawking radiation".
During the past couple of years a surprising new way to compute its entropy has emerged. This result indicates that the black hole formation and evaporation is consistent with standard quantum mechanical laws.

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Add to Calendar 2021-03-18T16:00:00 2021-03-18T17:00:00 The entropy of Hawking Radiation Black holes are interesting spacetime configurations predicted by general relativity. When quantum mechanics is taken into account, black holes are found to emit thermal radiation, called "Hawking radiation". During the past couple of years a surprising new way to compute its entropy has emerged. This result indicates that the black hole formation and evaporation is consistent with standard quantum mechanical laws. Event Location: Connect via zoom

March

| Event Location: via Zoom | Speaker: ALEX MAY

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Add to Calendar 2021-03-18T13:00:00 2021-03-18T15:00:00 Departmental Doctoral Oral Examination (Thesis Title: “Quantum tasks in holography”) Abstract: Event Location: via Zoom

March

| Event Location: Connect via Zoom | Speaker: Deborah Good, UBC

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The success of gravitational wave observations of stellar mass black hole mergers and neutron star mergers has proven that observational gravitational wave astronomy has an important part to play in coming years. However, ground-based laser interferometers can access only a limited portion of the gravitational wave spectrum.

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Add to Calendar 2021-03-17T11:00:00 2021-03-17T12:00:00 Pulsar Timing Arrays CHIME in on Gravitational Waves The success of gravitational wave observations of stellar mass black hole mergers and neutron star mergers has proven that observational gravitational wave astronomy has an important part to play in coming years. However, ground-based laser interferometers can access only a limited portion of the gravitational wave spectrum. Event Location: Connect via Zoom

March

| Event Location: Connect via zoom | Speaker: Dale E. Gary

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Abstract: New Jersey Institute of Technology's Expanded Owens Valley Solar Array (EOVSA) has amply demonstrated the power of radio imaging spectroscopy for imaging and quantitative diagnostics of both the flaring and non-flaring Sun.  The unique sensitivity of radio emission to the flaring coronal magnetic field has been dramatically shown in a series of recent papers, along with accelerated-electron diagnostics in the same volume.  The coming solar maximum (cycle 25) is slated to peak in 2025-2026, which promises to bring new space- and ground-based instruments together with EOVSA to provi

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Add to Calendar 2021-03-15T15:00:00 2021-03-15T16:00:00 Radio-based Studies of Solar Flares: Looking Ahead to the Next Solar Maximum in 2025 Abstract: New Jersey Institute of Technology's Expanded Owens Valley Solar Array (EOVSA) has amply demonstrated the power of radio imaging spectroscopy for imaging and quantitative diagnostics of both the flaring and non-flaring Sun.  The unique sensitivity of radio emission to the flaring coronal magnetic field has been dramatically shown in a series of recent papers, along with accelerated-electron diagnostics in the same volume.  The coming solar maximum (cycle 25) is slated to peak in 2025-2026, which promises to bring new space- and ground-based instruments together with EOVSA to provi Event Location: Connect via zoom

March

Add to Calendar 2021-03-12T14:00:00 2021-03-12T16:00:00 Final PhD Oral Examination (Thesis Title: "Adaptive Radiotherapy Treatment Corrections to Account for Patient-Specific Systematic Soft Tissue Deformations: Prostate, Lung, and Head & Neck Cancer”) Abstract: (see this link) Event Location: via Zoom

March

| Event Location: Connect via zoom | Speaker: Tom Davis (FactSet Research Systems)

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The connection between physics and finance goes back hundreds of years, and the names of the earliest physicists who studied finance may be surprising.  In the 18th century Bernoulli discovered Euler's constant e when investigating compound interest; more re

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Add to Calendar 2021-03-11T16:00:00 2021-03-11T17:00:00 The Connections Between Physics and Finance The connection between physics and finance goes back hundreds of years, and the names of the earliest physicists who studied finance may be surprising.  In the 18th century Bernoulli discovered Euler's constant e when investigating compound interest; more re Event Location: Connect via zoom

March

| Event Location: Zoom link in description | Speaker: Kate Ross, Colorado State University

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Add to Calendar 2021-03-11T10:00:00 2021-03-11T11:00:00 CM Seminar: Microscopics of Quantum Annealing in the Disordered Dipolar Ising Ferromagnet LiHo1-xYxF4 https://ubc.zoom.us/j/64183011430?pwd=U2lFNXEwSmlBRWVBdTR5OG1ZdlVSZz09 Meeting ID: 641 8301 1430 Passcode: 113399 Event Location: Zoom link in description

March

| Event Location: Connect via Zoom | Speaker: Markus Aspelmeyer, University of Vienna

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No experiment today provides evidence that gravity requires a quantum description. It has been suggested that one can at least exclude the possibility for semiclassical gravity by performing an experiment whose outcome cannot be explained by a purely classical source mass configuration.

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Add to Calendar 2021-03-10T11:00:00 2021-03-10T12:00:00 Gravitational coupling of microscopic source masses: challenges for future quantum Cavendish experiments No experiment today provides evidence that gravity requires a quantum description. It has been suggested that one can at least exclude the possibility for semiclassical gravity by performing an experiment whose outcome cannot be explained by a purely classical source mass configuration. Event Location: Connect via Zoom

March

| Event Location: Connect via zoom | Speaker: Ryan Trainor (Franklin & Marshall)

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Lyman-alpha emission is produced ubiquitously by excited hydrogen, so it is a powerful tracer of the interactions among gas, stars, and AGN that shape galaxy formation. However, the resonant scattering of this emission line makes its interpretation complex. In this talk, I will describe three related surveys of galaxies at z~2-3 that make use of Lyman-alpha emission: the Keck Baryonic Structure Survey (KBSS), the KBSS-Lya, and the Keck Lyman Continuum Survey (KCLS).

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Add to Calendar 2021-03-08T15:00:00 2021-03-08T16:00:00 Galaxy Formation in Lyman-alpha or: How I Learned to Stop Worrying and Love Scattered Light Lyman-alpha emission is produced ubiquitously by excited hydrogen, so it is a powerful tracer of the interactions among gas, stars, and AGN that shape galaxy formation. However, the resonant scattering of this emission line makes its interpretation complex. In this talk, I will describe three related surveys of galaxies at z~2-3 that make use of Lyman-alpha emission: the Keck Baryonic Structure Survey (KBSS), the KBSS-Lya, and the Keck Lyman Continuum Survey (KCLS). Event Location: Connect via zoom

March

Add to Calendar 2021-03-08T10:15:00 2021-03-08T12:15:00 Departmental Doctoral Oral Examination (Thesis Title: “New Physics Hunt at the Large Hadron Collider with the ATLAS Detector: Search for Heavy Exotic Resonances and Upgrade of the Transition Radiation Tracker DAQ Syst”) Abstract: (see this link) Event Location: via Zoom

March

| Event Location: Connect via zoom | Speaker: Andre Marziali (UBC)

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While motorsports events can appear to the general viewing public as a parade of cars driving around tracks in circles, in reality race drivers operating their cars at the grip limit are constantly on a razor's edge, balancing and adjusting the behavior of the car with a variety of inputs and techniques that are foreign to the average road driver.

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Add to Calendar 2021-03-04T16:00:00 2021-03-04T17:00:00 The Physics of Race Cars While motorsports events can appear to the general viewing public as a parade of cars driving around tracks in circles, in reality race drivers operating their cars at the grip limit are constantly on a razor's edge, balancing and adjusting the behavior of the car with a variety of inputs and techniques that are foreign to the average road driver. Event Location: Connect via zoom

March

| Event Location: Zoom | Speaker: Eva Pavarini - Institute for Advanced Simulation, Forschungszentrum Jülich

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Add to Calendar 2021-03-04T10:00:00 2021-03-04T11:00:00 CM Seminar - Understanding strong correlation effects in materials: from HTSCs to ruthenates. https://ubc.zoom.us/j/64183011430?pwd=U2lFNXEwSmlBRWVBdTR5OG1ZdlVSZz09 Meeting ID: 641 8301 1430 Passcode: 113399 Event Location: Zoom

March

| Event Location: Connect via Zoom | Speaker: Steve Carlip, UC Davis

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It has been suggested that Planck-scale "spacetime foam" could have significant macroscopic consequences, perhaps even offering a way to address the cosmological constant problem.  I will describe progress in constructing a locally spherically symmetric minisuperspace model with a positive cosmological constant that may shed light on these q

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Add to Calendar 2021-03-03T11:00:00 2021-03-03T12:00:00 Minisuperspacetime Foam It has been suggested that Planck-scale "spacetime foam" could have significant macroscopic consequences, perhaps even offering a way to address the cosmological constant problem.  I will describe progress in constructing a locally spherically symmetric minisuperspace model with a positive cosmological constant that may shed light on these q Event Location: Connect via Zoom