Controlling quantum many-body dynamics in driven Rydberg atom arrays
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- 25 March 2021
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 371 (6536), 1355-+
- https://doi.org/10.1126/science.abg2530
Abstract
The control of nonequilibrium quantum dynamics in many-body systems is challenging because interactions typically lead to thermalization and a chaotic spreading throughout Hilbert space. We investigate nonequilibrium dynamics after rapid quenches in a many-body system composed of 3 to 200 strongly interacting qubits in one and two spatial dimensions. Using a programmable quantum simulator based on Rydberg atom arrays, we show that coherent revivals associated with so-called quantum many-body scars can be stabilized by periodic driving, which generates a robust subharmonic response akin to discrete timecrystalline order. We map Hilbert space dynamics, geometry dependence, phase diagrams, and system-size dependence of this emergent phenomenon, demonstrating new ways to steer complex dynamics in many-body systems and enabling potential applications in quantum information science.Funding Information
- National Science Foundation
- National Science Foundation (PHY-1806765)
- Office of Naval Research
- U.S. Department of Energy
- U.S. Department of Energy (DE-SC0021110)
- U.S. Department of Energy (DE-SC0021110)
- Army Research Office
- Vannevar Bush Faculty Fellowship
- Defense Sciences Office, DARPA
- Horizon 2020 Framework Programme (850899)
- Gordon and Betty Moore Foundation (GBMF4306)
- National University of Singapore (AY2019/2020)
- European Research Council (850899)
- European Research Council (850899)
- National Science Foundation (DGE1745303)
- Hertz Foundation
- Gordon College
- Gordon and Betty Moore Foundation (GBMF4306)
- National University of Singapore (AY2019/2020)
- Adolph C. and Mary Sprague Miller Institute for Basic Research in Science, University of California Berkley
- National Defense Science and Engineering Graduate
- Center for Ultracold Atoms
- Stanford Institute of Theoretical Physics
- Max Planck / Harvard Research Center for Quantum Optics
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