Thermalization dynamics of a gauge theory on a quantum simulator
- URL: http://arxiv.org/abs/2107.13563v2
- Date: Fri, 15 Jul 2022 08:20:37 GMT
- Title: Thermalization dynamics of a gauge theory on a quantum simulator
- Authors: Zhao-Yu Zhou, Guo-Xian Su, Jad C. Halimeh, Robert Ott, Hui Sun,
Philipp Hauke, Bing Yang, Zhen-Sheng Yuan, J\"urgen Berges, Jian-Wei Pan
- Abstract summary: Gauge theories form the foundation of modern physics.
We perform quantum simulations of the unitary dynamics of a U(1) symmetric gauge field theory.
We investigate global quantum quenches and the equilibration to a steady state well approximated by a thermal ensemble.
- Score: 6.039858993863839
- License: http://creativecommons.org/licenses/by/4.0/
- 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 is encoded
in a one-dimensional Bose--Hubbard simulator, which couples fermionic matter
fields through dynamical gauge fields. We investigate 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.
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