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Thermalization dynamics of a gauge theory on a quantum simulator

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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 irreversib...

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Main Authors: Zhou, Zhao-Yu (Author) , Su, Guo-Xian (Author) , Halimeh, Jad C. (Author) , Ott, Robert (Author) , Sun, Hui (Author) , Hauke, Philipp (Author) , Yang, Bing (Author) , Yuan, Zhen-Sheng (Author) , Berges, Jürgen (Author) , Pan, Jian-Wei (Author)
Format: Article (Journal) Chapter/Article
Language:English
Published: 14 Jul 2022
In: Science. First release
Year: 2022, Volume: 377, Issue: 6603, Pages: 311-314
DOI:10.1126/science.abl6277
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1126/science.abl6277
Verlag, lizenzpflichtig, Volltext: https://www.science.org/doi/10.1126/science.abl6277
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Author Notes: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
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Summary: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.
Item Description:Gesehen am 14.11.2022
Physical Description:Online Resource
DOI:10.1126/science.abl6277

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