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X-WR-CALDESC:Events for UW QuantumX
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260402T123000
DTEND;TZID=America/Los_Angeles:20260402T133000
DTSTAMP:20260501T212218
CREATED:20260325T215236Z
LAST-MODIFIED:20260427T205920Z
UID:9929-1775133000-1775136600@www.quantumx.washington.edu
SUMMARY:Towards reconfigurable and deterministic twistronic 2D materials
DESCRIPTION:Speaker: Yuan Cao\, University of California at Berkeley\nTwo-dimensional materials (2DM) and their heterostructures offer tunable electrical and optical properties\, primarily modifiable through electrostatic gating and twisting. While electrostatic gating is a well-established method for manipulating 2DM\, achieving real-time control over interfacial properties remains a frontier in exploring 2DM physics and advanced quantum device technology. Current methods\, often reliant on scanning microscopes\, are limited in their application scope\, lacking the accessibility and scalability of electrostatic gating at the device level. In the first half of this seminar\, I will introduce an on-chip platform for 2DM with in situ adjustable interfacial properties\, employing a microelectromechanical system (MEMS). This platform comprises compact\, precise\, and versatile devices capable of voltage-controlled manipulation of 2DM\, including approaching\, twisting\, and pressurizing actions. We demonstrate this technology by creating synthetic topological singularities in the nonlinear optical susceptibility of twisted hexagonal boron nitride (h-BN).In the second half of this seminar\, I will talk about our recent progress in observing symmetry-forbidden second-harmonic generation in almost any 2D crystals\, which is extremely useful for deterministic twistronics. Optical spectroscopy based on second-order nonlinearity is a critical technique for characterizing two-dimensional (2D) crystals\, and it also finds numerous applications in bioimaging and quantum optics. It has been generally believed that second-harmonic generation (SHG) in crystals with inversion centers (centrosymmetric crystals)\, such as graphene and other bilayer 2D crystals\, is negligible without externally breaking the symmetry via strong surface effects. However\, with a new ultra-sensitive detection technique\, we could circumvent the symmetry-imposed constraint and observe robust SHG in pristine centrosymmetric crystals\, even without any symmetry-breaking field. With the exceptional sensitivity\, we directly observe polarization-resolved SHG in bilayer hexagonal boron nitride (h-BN)\, bilayer WSe2\, and remarkably\, Bernal-stacked bilayer graphene\, allowing us to unambiguously identify the crystallographic orientation in all these crystals via SHG. We also demonstrate that the new technique can be used to non-invasively detect uniaxial strain and geometric phase in these centrosymmetric crystals.
URL:https://www.quantumx.washington.edu/calendar/yuan-cao-university-of-california-at-berkeley-towards-reconfigurable-and-deterministic-twistronic-2d-materials/
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260406T143000
DTEND;TZID=America/Los_Angeles:20260406T153000
DTSTAMP:20260501T212218
CREATED:20251209T191014Z
LAST-MODIFIED:20260405T223139Z
UID:7729-1775485800-1775489400@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Fang Liu
DESCRIPTION:Event interval: Single day eventAccessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Fang Liu\, Michigan Technological University\, will present "Large scale production of artificial two-dimensional superlattices." \nAbstract: Two-dimensional (2D) materials and their engineered lattices offer exciting opportunities for next-generation electronic\, optoelectronic\, and electrochemical devices. Yet\, studies of high-quality heterostructures have been largely constrained to microscopic flakes. Here\, we present scalable\, controllable top-down methods that transform a wide range of van der Waals (vdW) single crystals into twisted moiré superlattices with high yield\, exceptional uniformity\, and macroscopic dimensions from millimeters to centimeters. Access to such large-area structures has enabled new discoveries\, including ultrafast thermal exchange at bilayer interfaces\, rapid photoinduced tuning of moiré patterns\, and markedly reduced Debye temperatures in deformed monolayers compared to their isolated counterparts. Furthermore\, by patterning 1D features—such as nanoribbon arrays and nanowrinkles—on 2D monolayers\, we uncover unique electronic and thermodynamic behaviors absent in pristine layers. These advances in large-scale 2D artificial structures pave the way toward mass production and practical deployment of twistronic devices. \nBio: Dr. Fang Liu is an Assistant Professor of Chemistry at Stanford University. She started her group in 2020. Her research focuses on the light-induced dynamics of solid low dimensional materials and construction of low dimensional artificial structures. Prior to her current position\, she was a postdoctoral fellow in the group of Prof. Xiaoyang Zhu at Columbia University. Prior to working in Columbia\, she worked under the direction of Prof. Marsha I Lester at University of Pennsylvania. She received her Ph.D. in 2015 and worked as a postdoc in the same group in 2016. She received her B.S. in chemistry at Peking University in 2010.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-tbd-6/
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260407T133000
DTEND;TZID=America/Los_Angeles:20260407T143000
DTSTAMP:20260501T212218
CREATED:20260202T191302Z
LAST-MODIFIED:20260310T180010Z
UID:8785-1775568600-1775572200@www.quantumx.washington.edu
SUMMARY:IQuS Research Seminar: Mark Rudner (University of Washington)
DESCRIPTION:Hybrid option available\, register on event website
URL:https://www.quantumx.washington.edu/calendar/mark-rudner-university-of-washington/
LOCATION:PAB C421\, 3910 15th Ave NE\, Seattle\, WA\, 98195
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260408T113000
DTEND;TZID=America/Los_Angeles:20260408T123000
DTSTAMP:20260501T212218
CREATED:20260319T220053Z
LAST-MODIFIED:20260407T233147Z
UID:9178-1775647800-1775651400@www.quantumx.washington.edu
SUMMARY:Chemistry Seminar: Prof. Colin Heyes
DESCRIPTION:Event interval: Single day eventCampus location: Chemistry Building (CHB)Campus room: CHB 102Accessibility Contact: chem59x@uw.eduEvent Types: Academics\,Lectures/SeminarsLink: https://cheyes.hosted.uark.edu/"TBD"Professor Colin Heyes – Department of Chemistry and Biochemistry\, University of ArkansasHost: Tristan Shi
URL:https://www.quantumx.washington.edu/calendar/chemistry-seminar-prof-colin-heyes/
LOCATION:Chemistry Building (CHB)
CATEGORIES:Chemistry
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260413T143000
DTEND;TZID=America/Los_Angeles:20260413T153000
DTSTAMP:20260501T212218
CREATED:20251212T232721Z
LAST-MODIFIED:20260412T230044Z
UID:7832-1776090600-1776094200@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Jun Xiao
DESCRIPTION:Event interval: Single day eventAccessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Jun Xiao\, University of Wisconsin-Madison will present "Strong THz electrodynamics and high-performance THz optoelectronics based on emergent 2D materials." \nAbstract: Terahertz (THz) sensing and imaging are critical in both quantum information technology and biomedical sensing because THz frequencies (0.1-10 THz) resonate with key low-energy information carriers (e.g.\, coherent phonons and magnons) in quantum materials and molecular vibrations in biological matter (e.g.\, skin tumor tissues and blood cells). In addition\, materials with THz response are essential building blocks for the next generation telecommunication technology. However\, the widespread use of THz technology has long been hindered by a lack of materials with strong THz light-matter interactions for high-performance devices. \nIn this talk\, I will present our recent advances in two-dimensional (2D) quantum materials to overcome these limitations by leveraging their unique topological properties and exploiting the resulting strong light-matter interactions. One remarkable example is the recently discovered nonlinear Hall effect (NHE) in 2D topological semimetals\, mediated by their diverging quantum geometrical properties . In the first part of the talk\, I will report how we use this new notion to demonstrate the long-sought THz sensing metrics . Specifically\, we have experimentally studied the unique interplay among the quantum geometrical properties\, gate-tunable electron correlation and THz electrodynamics in atomically thin topological semimetals TaIrTe4. Building upon the nonlinear Hall effect as a new mechanism for THz rectification\, we have observed a large zero-bias responsivity (~ 0.3 A/W)\, ultralow NEP (~ pW/Hz1/2)\, broadband THz response (0.1 to 10 THz) and ultrafast intrinsic speed (~ ps) at room temperature. The device performance can be further enhanced by introducing gate-tunable electron correlations. Thanks to the new topological physics and strong electron correlation\, the demonstrated device metrics show tremendous advantages over the attainable THz detectors based on other 2D materials and conventional technology. Beyond light probing\, the rich interplay physics in this platform also allows using light to induce more exotic order. If time permits\, I may present our ongoing efforts along this way.Detecting terahertz waves is only one half of the equation\, in the second half of the talk\, I will introduce our report of colossal THz emission from a van der Waals (vdW) ferroelectric semiconductor NbOI2 . Using THz emission spectroscopy\, we observe a THz generation efficiency that is an order of magnitude higher than that of ZnTe. We uncover the underlying generation mechanisms tied to its substantial ferroelectric polarization by investigating the dependence of THz emission on excitation wavelength\, incident polarization and fluence. Leveraging the long-lived coherent ferron-mediated THz emission\, we further demonstrate the ultrafast coherent amplification and annihilation of the THz emission and associated coherent ferron oscillations by using an ultrafast double-pump scheme. \nBio: Dr. Xiao is an assistant professor in the Department of Materials Science and Engineering at the University of Wisconsin-Madison from August 2021. Prior to joining Madison\, Dr. Jun Xiao worked as a postdoctoral scholar with Prof. Aaron Lindenberg and Prof. Tony Heinz at Stanford University and SLAC National Accelerator Laboratory. He earned his Ph.D. in applied science and technology from UC Berkeley (2018) under Prof. Xiang Zhang’s supervision. He received his bachelor’s degree in physics from Nanjing University (2012). His research experience and interests focus on structure-property relationships and light-matter interactions in 2D quantum materials for robust quantum computing\, efficient energy conservation and high-performance THz optoelectronics. His findings are published in many high-impact journals including Nature\, Science\, Nature Physics\, Nature Nanotechnology\, Nature Electronics and Physical Review Letters. He is the recipient of the 2023 NSF CAREER Award. 
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-jun-xiao/
CATEGORIES:Materials Science & Engineering
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260413T160000
DTEND;TZID=America/Los_Angeles:20260413T160000
DTSTAMP:20260501T212218
CREATED:20260319T221603Z
LAST-MODIFIED:20260325T203047Z
UID:9455-1776096000-1776096000@www.quantumx.washington.edu
SUMMARY:: TBA
DESCRIPTION:: TBA\nPAA A102\nColloquia\nhttps://phys.washington.edu/events/2026-04-13/tba
URL:https://www.quantumx.washington.edu/calendar/physics-seminar-dahlia-klein-university-of-chicago/
LOCATION:PAA A102
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260415T113000
DTEND;TZID=America/Los_Angeles:20260415T123000
DTSTAMP:20260501T212218
CREATED:20260413T220731Z
LAST-MODIFIED:20260415T174617Z
UID:10196-1776252600-1776256200@www.quantumx.washington.edu
SUMMARY:Chemistry Seminar: Prof. Andrew M. Rappe
DESCRIPTION:Event interval: Single day eventCampus location: Chemistry Building (CHB)Campus room: CHB 102Accessibility Contact: gingerrc@uw.eduEvent Types: Academics\,Lectures/Seminars"Hybrid Perovskites as a novel platform for optoelectronics"Professor Andrew M. Rappe – Department of Chemistry\, University of PennsylvaniaHost: David GingerThe perovskite crystal structure hosts a wealth of intriguing properties\, and the renaissance of interest in halide (and hybrid organic-inorganic) perovskites (HOIPs) has further broadened the palette of exciting physical phenomena. Breakthroughs in HOIP synthesis\, characterization\, and solar cell design have led to remarkable increases in reported photovoltaic efficiency. However\, the observed long carrier lifetime and PV performance have eluded comprehensive physical justification. The hybrid perovskites serve as an enigmatic crossroads of physics. Concepts from crystalline band theory\, molecular physics\, liquids\, and phase transitions have been applied with some success\, but the observations of HOIPs make it clear that none of these conceptual frameworks completely fits. In this talk\, recent theoretical progress in understanding HOIPs will be reviewed and integrated with experimental findings. The large amplitude motions of HOIPs will be highlighted\, including ionic diffusion\, anharmonic phonons\, and dynamic incipient order on various length and time scales. The intricate relationships between correlated structural fluctuations\, polar order\, and excited charge carrier dynamics will also be discussed\, along with implications for materials design of next-generation optoelectronic materials design.
URL:https://www.quantumx.washington.edu/calendar/chemistry-seminar-prof-andrew-m-rappe/
LOCATION:Chemistry Building (CHB)
CATEGORIES:Chemistry
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260416T153000
DTEND;TZID=America/Los_Angeles:20260416T163000
DTSTAMP:20260501T212218
CREATED:20251117T193047Z
LAST-MODIFIED:20260416T091529Z
UID:7238-1776353400-1776357000@www.quantumx.washington.edu
SUMMARY:CSE Distinguished Lecture Series: Mike Dodds
DESCRIPTION:Event interval: Single day eventCampus room: Gates Center (CSE2)\, G20 | Amazon AuditoriumAccessibility Contact: dso@uw.eduEvent Types: Lectures/SeminarsEvent sponsors: Paul G. Allen School of Computer Science & Engineering\nwww.cs.washington.eduLink: https://www.cs.washington.edu/events/colloquia/details?id=3381AbstractAbstract is forthcoming.BioMike Dodds joined Galois in 2017 as a Principal Scientist. He specializes in applying formal methods to systems engineering problems in areas such as cryptography\, distributed protocols\, cyber-physical systems\, and hardware semantics. Much of Mike’s work has focused on building tools that can be used by non-expert developers as part of their regular engineering workflow.Mike has led a range of projects at Galois\, including our work on CN\, a unified testing and verification tool for C code; Daedalus\, a safe parsing language developed under the DARPA SafeDocs project; c2rust\, a transpiler used by several popular Rust crates; and several verified cryptography projects using SAW and Cryptol\, including a long-running collaboration with Amazon Web Services on core components of their AWS-LibCrypto library.Mike received his PhD from the University of York\, UK\, in 2008\, under the supervision of Dr. Detlef Plump. He then spent four years as a postdoctoral researcher at the University of Cambridge\, working with Dr. Matthew Parkinson and Prof. Peter Sewell. He returned to the University of York as a lecturer (in US terms\, an associate professor) from 2012 to 2017\, before joining Galois.This lecture will be streamed live and recorded.
URL:https://www.quantumx.washington.edu/calendar/distinguished-lecture-series-mike-dodds-forthcoming/
LOCATION:Gates Center (CSE2)\, G20 | Amazon Auditorium
CATEGORIES:Computer Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260420T143000
DTEND;TZID=America/Los_Angeles:20260420T152000
DTSTAMP:20260501T212218
CREATED:20251212T232734Z
LAST-MODIFIED:20260419T230039Z
UID:7833-1776695400-1776698400@www.quantumx.washington.edu
SUMMARY:MSE Seminar: Timothy Hebrink
DESCRIPTION:Event interval: Single day eventAccessibility Contact: Matthew Yankowitz\, myank@uw.eduEvent Types: Lectures/Seminars \nTitle: Light and Energy Management Films for Improving the Energy Efficiency of Buildings\, Vehicles\, and Electronics. \nAbstract: Light and energy management play essential roles in modern life\, influencing electronic displays\, energy-efficient buildings and vehicles\, and renewable energy systems. At 3M\, significant advancements in optical film technologies-such as multilayer optical films and micro-structured films-have enabled new approaches to control\, direct\, and utilize light more effectively. This talk will introduce the fundamental science underlying these optical film technologies and highlight their applications\, including brightness enhancement in LCD displays\, solar heat rejection in architectural and automotive glazing\, and radiative cooling solutions for buildings and vehicles. These light and energy management films improve the energy efficiency of buildings\, vehicles\, and electronic applications\, and thus reduce electricity consumption or improve human comfort and safety. In alignment with 3M’s commitment to “Science Applied to Life\,” the presentation will demonstrate how scientific innovation translates into practical solutions with meaningful impact across industries and everyday experiences. \nBio: Tim Hebrink\, Corporate Scientist in 3M Corporate Research Process Lab\, graduated from the University of Minnesota with a BS in Chemical Engineering\, and has 41 years of polymer product development experience at 3M Company. His expertise\, and innovations\, in polymer properties and polymer processing has earned him 85 issued US patents and >60 pending patent applications covering novel optical polymers\, optical film designs\, polymer films with improved properties\, and novel applications of polymer films. Polymer films produced by his inventions have enabled significant 3M polymeric film sales resulting in 6 Golden Step Awards for individual products achieving sales greater than $20million/year. While at 3M Company\, Tim’s technical contributions to 3M have been recognized with 11 Circle of Technical Excellence awards. He has collaborated with many Universities and National Laboratories resulting in 12 research publications including a book chapter on Durable Polymer Films. He is passionate about energy efficiency and sustainability.
URL:https://www.quantumx.washington.edu/calendar/mse-seminar-timothy-hebrink/
CATEGORIES:Materials Science & Engineering
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260420T160000
DTEND;TZID=America/Los_Angeles:20260420T160000
DTSTAMP:20260501T212218
CREATED:20260319T221758Z
LAST-MODIFIED:20260405T211640Z
UID:9456-1776700800-1776700800@www.quantumx.washington.edu
SUMMARY:Physics Seminar: Allan Macdonald (University of Texas at Austin)
DESCRIPTION:PAA A102Colloquiahttps://phys.washington.edu/events/2026-04-20/tba
URL:https://www.quantumx.washington.edu/calendar/physics-seminar-allan-macdonald-university-of-texas-at-austin/
LOCATION:PAA A102
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260427T160000
DTEND;TZID=America/Los_Angeles:20260427T160000
DTSTAMP:20260501T212218
CREATED:20260319T222018Z
LAST-MODIFIED:20260412T213043Z
UID:9457-1777305600-1777305600@www.quantumx.washington.edu
SUMMARY:Physics Seminar: Chris Monroe (Duke University)
DESCRIPTION:PAA A102Colloquiahttps://phys.washington.edu/events/2026-04-27/tba
URL:https://www.quantumx.washington.edu/calendar/physics-seminar-chris-monroe-duke-university/
LOCATION:PAA A102
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260428T133000
DTEND;TZID=America/Los_Angeles:20260428T143000
DTSTAMP:20260501T212218
CREATED:20260310T175516Z
LAST-MODIFIED:20260310T180116Z
UID:9427-1777383000-1777386600@www.quantumx.washington.edu
SUMMARY:IQuS Research Semimar: Charles Cao (Virginia Tech)
DESCRIPTION:Hybrid option available\, register on event website.
URL:https://www.quantumx.washington.edu/calendar/iqus-research-semimar-charles-cao-virginia-tech/
LOCATION:Physics/Astronomy Building\, C-421\, 3910 15th Ave NE\, Seattle\, Washington\, 98195-1560
CATEGORIES:Physics
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260430T120000
DTEND;TZID=America/Los_Angeles:20260430T130000
DTSTAMP:20260501T212218
CREATED:20260427T215637Z
LAST-MODIFIED:20260427T215644Z
UID:10467-1777550400-1777554000@www.quantumx.washington.edu
SUMMARY:Andrew Houck (Princeton)\, C2QA Quantum Thursdays: Millisecond lifetimes and coherence times in 2D transmon qubits
DESCRIPTION:
URL:https://www.quantumx.washington.edu/quantum-thursdays-virtual-lecture-andrew-houck-princeton-university-millisecond-lifetimes-and-coherence-times-in-2d-transmon-qubits/
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