Thermalization dynamics of a gauge theory on a quantum simulator

• Verfasst von: Zhou, Zhao-Yu [VerfasserIn]
• Verfasst von: Su, Guo-Xian [VerfasserIn]
• Verfasst von: Halimeh, Jad C. [VerfasserIn]
• Verfasst von: Ott, Robert [VerfasserIn]
• Verfasst von: Sun, Hui [VerfasserIn]
• Verfasst von: Hauke, Philipp [VerfasserIn]
• Verfasst von: Yang, Bing [VerfasserIn]
• Verfasst von: Yuan, Zhen-Sheng [VerfasserIn]
• Verfasst von: Berges, Jürgen [VerfasserIn]
• Verfasst von: Pan, Jian-Wei [VerfasserIn]
• Titel: Thermalization dynamics of a gauge theory on a quantum simulator
• Verf.angabe: Zhao-Yu Zhou, Guo-Xian Su, Jad C. Halimeh, Robert Ott, Hui Sun, Philipp Hauke, Bing Yang, Zhen-Sheng Yuan, Jürgen Berges, Jian-Wei Pan
• E-Jahr: 2022
• Jahr: 14 Jul 2022
• Umfang: 4 S.
• Fussnoten: Gesehen am 14.11.2022
• Titel Quelle: Enthalten in: Science. First release
• Ort Quelle: Washington, DC : American Association for the Advancement of Science, 2001
• Jahr Quelle: 2022
• Band/Heft Quelle: 377(2022), 6603, Seite 311-314
• DOI: doi:10.1126/science.abl6277
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1822342767

Abstract

Gauge theories form the foundation of modern physics, with applications ranging from elementary particle physics and early-universe cosmology to condensed matter systems. We perform quantum simulations of the unitary dynamics of a U(1) symmetric gauge field theory and demonstrate emergent irreversible behavior. The highly constrained gauge theory dynamics are encoded in a one-dimensional Bose-Hubbard simulator, which couples fermionic matter fields through dynamical gauge fields. We investigated global quantum quenches and the equilibration to a steady state well approximated by a thermal ensemble. Our work may enable the investigation of elusive phenomena, such as Schwinger pair production and string breaking, and paves the way for simulating more complex, higher-dimensional gauge theories on quantum synthetic matter devices.