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DTSTART;TZID=America/Los_Angeles:20260302T160000
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DTSTAMP:20260430T165258
CREATED:20251218T214908Z
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UID:8018-1772467200-1772467200@www.quantumx.washington.edu
SUMMARY:Dmitri Shklovskii\, Flatiron Institute
DESCRIPTION:PAA A-102Colloquiahttps://phys.washington.edu/events/2026-03-02/tba
URL:https://www.quantumx.washington.edu/calendar/dmitri-shklovskii-flatiron-institute/
LOCATION:PAA A-102
CATEGORIES:Physics
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DTSTART;TZID=America/Los_Angeles:20260310T133000
DTEND;TZID=America/Los_Angeles:20260310T143000
DTSTAMP:20260430T165258
CREATED:20260310T174419Z
LAST-MODIFIED:20260310T175343Z
UID:9413-1773149400-1773153000@www.quantumx.washington.edu
SUMMARY:IQuS Research Seminar: Stephen Jordan (Google Quantum AI)
DESCRIPTION:Optimization by Decoded Quantum Interferometry \n\n\n\nAchieving superpolynomial speedups for optimization has long been a central goal for quantum algorithms. I will discuss Decoded Quantum Interferometry (DQI)\, a quantum algorithm descended from Regev’s reduction\, that uses the quantum Fourier transform to reduce optimization problems to decoding problems. For approximating optimal polynomial fits over finite fields\, DQI achieves a superpolynomial speedup over known classical algorithms. The speedup arises because the problem’s algebraic structure is reflected in the decoding problem\, which can be solved efficiently. Whether DQI can also attain quantum advantage for algebraically unstructured optimization problems such as max-k-XORSAT remains an open question. One reason for optimism is that the sparsity of the clause structure in max-k-XORSAT is reflected in the dual decoding problem\, which is for LDPC codes. I will describe some current lines of attack on this open question\, as well as generalizations of DQI for preparing Gibbs states of Hamiltonians. This talk will target a broad audience without assuming deep background in quantum algorithms.
URL:https://www.quantumx.washington.edu/calendar/iqus-research-seminar-stephen-jordan-google-quantum-ai/
LOCATION:Physics/Astronomy Building\, C-421\, 3910 15th Ave NE\, Seattle\, Washington\, 98195-1560
CATEGORIES:Physics
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DTSTART;TZID=America/Los_Angeles:20260312T123000
DTEND;TZID=America/Los_Angeles:20260312T133000
DTSTAMP:20260430T165258
CREATED:20260202T185845Z
LAST-MODIFIED:20260202T185917Z
UID:8766-1773318600-1773322200@www.quantumx.washington.edu
SUMMARY:T Serkan Kasirga (Bilkent University): Optoelectronics and phase transitions of atomically thin materials via proximity engineering nbsp
DESCRIPTION:Speaker: T Serkan Kasirga\, Bilkent University\nUnlike three-dimensional materials\, screening of the interaction across quasiparticles in atomically thin materials can significantly alter their electronic and phononic properties. Earlier studies have demonstrated that dielectric screening can modify material parameters\, including electronic mobility\, conductivity\, Raman modes\, Seebeck coefficient\, and photoluminescence\, in semiconducting two-dimensional (2D) materials. In this talk\, I will discuss our efforts on finding novel two-dimensional materials with phase transitions via interlayer space modification and how screening modification via substrate engineering can be used in conjunction with scanning photocurrent microscopy to investigate the fundamental properties of 2D materials\, such as photoresponse mechanisms. Moreover\, I will illustrate how metals can be used to achieve screening\, despite the odds\, at the ultimate proximity to control the excitonic light emission from semiconducting 2D materials. Ultimately\, I will attempt to demonstrate how screening effects can be leveraged to enhance various electronic and optical properties of two-dimensional materials.
URL:https://www.quantumx.washington.edu/calendar/t-serkan-kasirga-bilkent-university-optoelectronics-and-phase-transitions-of-atomically-thin-materials-via-proximity-engineering-nbsp/
LOCATION:PAT C520
CATEGORIES:Physics
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