BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Stewart Blusson Quantum Matter Institute - ECPv6.18.2//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
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
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Vancouver
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20230312T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20231105T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20240310T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20241103T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20250309T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20251102T090000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20240201T100000
DTEND;TZID=America/Vancouver:20240201T110000
DTSTAMP:20240130T212209Z
CREATED:20240130T212209Z
LAST-MODIFIED:20240130T212209Z
UID:6951-1706781600-1706785200@qmi.miffanytark.com
SUMMARY:CM Seminar: Hao Tjeng – Max Planck Institute: Stabilization of U 5f2 configuration in UTe2 through U 6d dimers in the presence of Te2 chains
DESCRIPTION:Hao Tjeng – Max Planck\nTitle: Stabilization of U 5f2 configuration in UTe2 through U 6d dimers in the presence of Te2 chains \nAbstract: We investigate the topological superconductor candidate UTe2 using high-resolution valence-band resonant inelastic x-ray scattering at the U M4\,5-edges. We observe atomic-like low-energy excitations that support the correlated nature of this unconventional superconductor. These excitations originate from the U 5f2 configuration\, which is unexpected since the short Te2-Te2 distances exclude Te2 being 2-. By utilizing the photoionization cross-section dependence of the photoemission spectra in combination with band structure calculations\, we infer that the stabilization of the U 5f2 configuration is due to the U 6d bonding states in the U-dimers acting as a charge reservoir. Our results emphasize that the description of the physical properties should commence with a 5f2 ansatz. \nSpeaker Bio: Prof. Tjeng has been Director and Scientifc member at the Max Planck Institute for Chemical Physics of Solids since October 2009. He is an experimental physicist and has previously been associated with the Royal Netherlands Academy of Sciences\, the Solid State Physics Laboratory\, University of Groningen\, The Netherlands\, and the University of Cologne\, Germany.
URL:https://qmi.miffanytark.com/event/cm-seminar-hao-tjeng-max-planck-institute-stabilization-of-u-5f2-configuration-in-ute2-through-u-6d-dimers-in-the-presence-of-te2-chains/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20240208T100000
DTEND;TZID=America/Vancouver:20240208T110000
DTSTAMP:20240123T175112Z
CREATED:20240123T175112Z
LAST-MODIFIED:20240123T175112Z
UID:6851-1707386400-1707390000@qmi.miffanytark.com
SUMMARY:CM Seminar: James McIver– Columbia University: Ultrafast optoelectronic circuits
DESCRIPTION:CM Seminar: James McIver– Columbia University\nTitle: Ultrafast optoelectronic circuits \nAbstract: 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. \nIn this talk\, I will present on my group’s activities using these circuits to study the electrical transport properties of quantum materials driven out of equilibrium by femtosecond laser pulses [1]. In monolayer graphene\, we observe an anomalous Hall effect induced by circularly polarized light in the absence of an applied magnetic field [2]. The dependence of the effect on a gate potential used to tune the Fermi level reveals multiple features that reflect the formation of a photon-dressed\, or “Floquet-engineered”\, topological band structure. The results are a critical first step towards realizing and controlling light-induced topological edge states. I will also discuss our recent results on the Weyl semimetal Td-MoTe2\, where we observe rectified photocurrents that scale linearly with the applied laser field. This scaling violates the perturbative description of nonlinear optics/transport\, but can be explained by the formation of a photon-dressed magnetic Weyl semimetal state. \nIn the second part of my talk\, I will present on my group’s efforts in using femtosecond voltage pulses generated on-chip to probe and manipulate gate-tunable van der Waals heterostructures embedded in plasmonic cavities. We perform near-field time-domain THz spectroscopy on these cavities to study the light-matter hybridization. We observe coherent plasmon cavity modes that can be tuned from the weak to ultrastrong coupling regimes with electrostatic gating and cavity geometry. These techniques\, which we are extending to mK temperatures and strong magnetic fields\, could be used to investigate and control a wide range of topological and strongly correlated phenomena in microstructured quantum materials and heterostructures that fall on the THz/meV energy scale.
URL:https://qmi.miffanytark.com/event/cm-seminar-james-mciver-columbia-university/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20240215T100000
DTEND;TZID=America/Vancouver:20240215T110000
DTSTAMP:20240123T175412Z
CREATED:20240123T175412Z
LAST-MODIFIED:20240123T175412Z
UID:6853-1707991200-1707994800@qmi.miffanytark.com
SUMMARY:CM Seminar: James Analytis – UC Berkley: Frustrated Quantum Devices: understanding how correlations\, complex order and boundary states manifest in novel material functionalities
DESCRIPTION:CM Seminar: James Analytis – UC Berkley \nTitle: Frustrated Quantum Devices: understanding how correlations\, complex order and boundary states manifest in novel material functionalities \nAbstract: Materials at the boundary of critical phase transitions are of significant fundamental interest\, not least due because of their connection to unconventional superconductivity and quantum magnetism. One characteristic of such systems is the presence of coupled order parameters that underlie these phase transitions. Here\, we explore how this coupling manifests in the response of these materials when driven out of equilibrium by applied currents. We demonstrate how magnetic and charge textures can be electrically manipulated\, suggesting possible applications for exotic materials in spintronics technologies. \n 
URL:https://qmi.miffanytark.com/event/cm-seminar-james-analytis-uc-berkley-frustrated-quantum-devices-understanding-how-correlations-complex-order-and-boundary-states-manifest-in-novel-material-functionalities/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20240229T100000
DTEND;TZID=America/Vancouver:20240229T110000
DTSTAMP:20240214T190047Z
CREATED:20240214T190047Z
LAST-MODIFIED:20240214T190047Z
UID:7086-1709200800-1709204400@qmi.miffanytark.com
SUMMARY:CM Seminar: Ania Bleszynski Jayich – University of California Santa Barbara: Quantum sensing in the solid-state: from one spin to many spins
DESCRIPTION:CM Seminar: Ania Bleszynski Jayich – University of California Santa Barbara\nTitle: Quantum sensing in the solid-state: from one spin to many spins \nAbstract: 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. Here I first present our group’s work on NV-center-based scanned probe imaging of electron flow patterns in graphene\, revealing the presence of hydrodynamic electron flow. A frontier of quantum sensing is the utilization of entangled quantum sensors for metrological advantage\, a goal not yet realized in the solid-state. I also discuss our group’s progress towards realizing novel many-body states of entangled spins\, both diamond-based qubits and novel chemically-assembled molecular spin systems. \nSpeaker Bio: Ania Bleszynski Jayich is a professor of physics at the University of California Santa Barbara\, where she holds the Bruker Endowed Chair for Science and Engineering\, the Elings Endowed Chair for Quantum Science\, and is co-director of the Quantum Foundry\, an NSF Q-AMASE-I center. Her research interests include quantum assisted sensing and imaging on the nanoscale\, spin-coupled optomechanics\, and hybrid quantum systems for sensing and quantum information. Before coming to UCSB\, Ania was a postdoctoral researcher at Yale University\, and received her PhD in physics from Harvard in 2006 and a B.S. in physics and mathematical and computational science from Stanford in 2000. \n 
URL:https://qmi.miffanytark.com/event/cm-seminar-ania-bleszynski-jayich-university-of-california-santa-barbara-quantum-sensing-in-the-solid-state-from-one-spin-to-many-spins/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
END:VCALENDAR