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X-ORIGINAL-URL:https://iqus.uw.edu/
X-WR-CALNAME:IQuS
X-WR-CALDESC:InQubator for Quantum Simulation
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BEGIN:VEVENT
CLASS:PUBLIC
UID:MEC-53a1320cb5d2f56130ad5222f93da374@iqus.uw.edu
DTSTART:20250423T203000Z
DTEND:20250423T213000Z
DTSTAMP:20250228T130900Z
CREATED:20250228
LAST-MODIFIED:20250416
PRIORITY:5
SEQUENCE:4
TRANSP:OPAQUE
SUMMARY:Thermalization and Criticality on an Analogue–Digital Quantum Simulator
DESCRIPTION:\nXiao Mi, Google\nUnderstanding how interacting particles approach thermal equilibrium is a major challenge of quantum simulators1,2. Unlocking the full potential of such systems towards this goal requires flexible initial state preparation, precise time evolution and extensive probes for final state characterization. Here we present a quantum simulator comprising 69 superconducting qubits that supports both universal quantum gates and high-fidelity analogue evolution, with performance beyond the reach of classical simulation in cross-entropy benchmarking experiments. This hybrid platform features more versatile measurement capabilities compared with analogue-only simulators, which we leverage here to reveal a coarsening-induced breakdown of Kibble–Zurek scaling predictions3 in the XY model, as well as signatures of the classical Kosterlitz–Thouless phase transition4. Moreover, the digital gates enable precise energy control, allowing us to study the effects of the eigenstate thermalization hypothesis5,6,7 in targeted parts of the eigenspectrum. We also demonstrate digital preparation of pairwise-entangled dimer states, and image the transport of energy and vorticity during subsequent thermalization in analogue evolution. These results establish the efficacy of superconducting analogue–digital quantum processors for preparing states across many-body spectra and unveiling their thermalization dynamics.\n
URL:https://iqus.uw.edu/events/xiao-mi-google/
ORGANIZER;CN=Saurabh Kadam:MAILTO:ksaurabh@uw.edu
CATEGORIES:Seminars
LOCATION:UW, 15th and Pacific, Seattle
ATTACH;FMTTYPE=image/jpeg:https://iqus.uw.edu/wp-content/uploads/2025/02/Xiao-Mi.jpg
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