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X-WR-CALNAME:Stewart Blusson Quantum Matter Institute
X-ORIGINAL-URL:https://qmi.miffanytark.com
X-WR-CALDESC:Events for Stewart Blusson Quantum Matter Institute
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DTSTART;TZID=America/Vancouver:20220203T100000
DTEND;TZID=America/Vancouver:20220203T110000
DTSTAMP:20220127T224446Z
CREATED:20220127T224446Z
LAST-MODIFIED:20220127T224446Z
UID:4048-1643882400-1643886000@qmi.miffanytark.com
SUMMARY:Eliška Greplová: Quantum Matter Meets Artificial Intelligence
DESCRIPTION:https://ubc.zoom.us/j/68470173961?pwd=RTZEak9Pd01WajVOZHN5SW5YZHcyQT09 \nMeeting ID: 684 7017 3961\nPasscode: 113399 \n  \n\nSpeaker: Eliska Greplova\, Assistant professor at the Department of Quantum Nanoscience at Delft University of Technology \n  \nAbstract: The fields of condensed matter\, artificial intelligence and quantum computing have independently experienced a number of breakthroughs in the last decade. In this talk\, I am going provide an illustration of their mutually beneficial overlaps and emerging interdisciplinary applications. Specifically\, I am going to show how AI-motivated ansätze for quantum wave functions can help us solve complex problems in topological condensed matter physics. The emergent topological modes can in turn redefine a figure of merit for design of quantum devices – that\, to close the circle – give rise to challenging control problems that can be efficiently solved with the help of machine learning algorithms. \n  \nBio: Eliska is an assistant professor at Kavli Institute of Nanoscience\, Delft University of Technology\, Netherlands. She is leading Quantum Matter and AI group\, where she works at the boundary of quantum computing\, artificial intelligence and condensed matter physics. Prior to joining TU Delft\, Eliska completed her PhD at Aarhus University in Denmark and postdoctoral fellowship at ETH Zürich in Switzerland. Eliska is a member of World Economic Forum Global Future Council on Quantum Computing and co-founder of an open science platform Virtual Science Forum.
URL:https://qmi.miffanytark.com/event/eliska-greplova/
CATEGORIES:CM Seminar
ORGANIZER;CN="Kaho Saito":MAILTO:kaho.saito@ubc.ca
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DTSTART;TZID=America/Vancouver:20220210T100000
DTEND;TZID=America/Vancouver:20220210T110000
DTSTAMP:20220131T181905Z
CREATED:20220131T181905Z
LAST-MODIFIED:20220131T181905Z
UID:4052-1644487200-1644490800@qmi.miffanytark.com
SUMMARY:Christian Schneider: Exciton-Polaritons and their condensates in microcavities loaded with atomically thin crystals
DESCRIPTION:https://ubc.zoom.us/j/68470173961?pwd=RTZEak9Pd01WajVOZHN5SW5YZHcyQT09\nMeeting ID: 684 7017 3961\nPasscode: 113399 \n\nSpeaker: Christian Schneider\, Institute of Physics\, University of Oldenburg \nMonolayer transition metal dichalcogenides (TMDC) have emerged as a new platform for studies of tightly bound excitons and many-body excitations in ultimately thin materials. Their giant dipole coupling to optical fields makes them very appealing for implementing novel photonic devices\, and for fundamental investigations in the framework of cavity quantum electrodynamics [1]. \nIn the regime of strong light-matter coupling between TMDC excitons and microcavity photons \,  the effect of bosonic condensation of becomes evident in the high-density regime [2]. I will  address the question on the emergence of long-range first-order spatial coherence\, via interferometric g(1)(t) measurements (Fig. 1c). I will finally discuss the emergence of coherence of exciton-polaritons in a trap at room temperature [3]. \n \nPolariton dispersion relation below (0.1 Pth\, panel a\, excitation laser at 1.671 eV) and above threshold (2Pth\, panel b). (c) Real space interference pattern produced in a Michelson interferometer\, with a zero delay between the two interfering paths\, and one retro-reflected image. \n[1] C. Schneider et al. Nature Commun. 9\, 2695 (2018). \n[2] C. Anton-Solanas\, et al. Nature Materials 1-7 (2021).
URL:https://qmi.miffanytark.com/event/christian-schneider-exciton-polaritons-and-their-condensates-in-microcavities-loaded-with-atomically-thin-crystals/
CATEGORIES:CM Seminar
ORGANIZER;CN="Kaho Saito":MAILTO:kaho.saito@ubc.ca
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20220215T150000
DTEND;TZID=America/Vancouver:20220215T160000
DTSTAMP:20211101T205857Z
CREATED:20211101T205857Z
LAST-MODIFIED:20211101T205857Z
UID:3542-1644937200-1644940800@qmi.miffanytark.com
SUMMARY:Careers in Research
DESCRIPTION:Speakers:\nKateryna Foyevtsova \n\nResearch Associate\, Density Functional Theory\n\nSilvia Lueschner-Folk \n\nResearch Associate\, Topological Devices\n\nFengmiao Li \n\nResearch Associate\, Molecular Beam Epitaxy
URL:https://qmi.miffanytark.com/event/careers-in-research/
CATEGORIES:Student event
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20220217T100000
DTEND;TZID=America/Vancouver:20220217T110000
DTSTAMP:20220209T183956Z
CREATED:20220209T183956Z
LAST-MODIFIED:20220209T183956Z
UID:4065-1645092000-1645095600@qmi.miffanytark.com
SUMMARY:Fazel Tafti: A New Paradigm for Colossal Magnetoresistance and Nonlinear Hall Effect
DESCRIPTION:https://ubc.zoom.us/j/68470173961?pwd=RTZEak9Pd01WajVOZHN5SW5YZHcyQT09 \nMeeting ID: 684 7017 3961\nPasscode: 113399 \n\nSpeaker: Fazel Tafti\, Boston College \nAbstract \nMaterials with strong magneto resistive responses are the backbone of spintronic technology\, magnetic sensors\, and hard drives. Among them\, manganese oxides with a mixed valence and a cubic perovskite structure stand out due to their colossal magnetoresistance (CMR). A double exchange interaction underlies the CMR in manganates\, whereby charge transport is enhanced when the spins on neighboring Mn3+ and Mn4+ ions are parallel. Prior efforts to find different materials or mechanisms for CMR resulted in a much smaller effect. In this talk\, I present the observation of an enormous CMR at low temperatures in EuCd2P2 without manganese\, oxygen\, mixed valence\, or cubic perovskite structure. EuCd2P2 has a layered trigonal lattice and exhibits antiferromagnetic ordering at 11 K. The magnitude of CMR (104%) in as-grown crystals of EuCd2P2 rivals the magnitude in optimized thin films of manganates. The magnetization\, transport\, and synchrotron X-ray data suggest that strong magnetic fluctuations are responsible for this phenomenon. The realization of CMR at low temperatures without heterovalency leads to a new regime for materials and technologies related to antiferromagnetic spintronics. \nBiography: \nFazel Tafti completed his PhD at the University of Toronto with Prof. Steven Julian. His thesis was focused on developing transport experiments under ultrahigh pressures in diamond anvil cells. His first postdoc position at the University of Sherbrook with Prof. Louis Taillefer was focused on the thermal conductivity and thermoelectric measurements in iron-based superconductors under intense magnetic fields. He then changed fields from physics to chemistry and completed a second postdoc at Princeton University with Prof. Bob Cava. His research was focused on the chemical synthesis of topological and magnetic materials.  He has been an assistant professor at Boston College (physics department) since 2016. His lab is interdisciplinary between physics\, chemistry\, and materials science. \n  \n 
URL:https://qmi.miffanytark.com/event/fazel-tafti-a-new-paradigm-for-colossal-magnetoresistance-and-nonlinear-hall-effect/
ORGANIZER;CN="Lada Synkova":MAILTO:lada.synkova@ubc.ca
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