Gauge violation spectroscopy of synthetic gauge theories

Recently synthetic gauge fields have been implemented on quantum simulators. Unlike the gauge fields in the real world, in synthetic gauge fields, the gauge charge can fluctuate and gauge invariance can be violated, which leads to rich physics unexplored before. In this work, we first propose the ga...

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Main Authors: Hao-Yue Qi, Wei Zheng
Format: Article
Language:English
Published: American Physical Society 2024-01-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.6.013047
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author Hao-Yue Qi
Wei Zheng
author_facet Hao-Yue Qi
Wei Zheng
author_sort Hao-Yue Qi
collection DOAJ
description Recently synthetic gauge fields have been implemented on quantum simulators. Unlike the gauge fields in the real world, in synthetic gauge fields, the gauge charge can fluctuate and gauge invariance can be violated, which leads to rich physics unexplored before. In this work, we first propose the gauge violation spectroscopy as a powerful experimentally accessible measurement of synthetic gauge theories. We show that the gauge violation spectroscopy exhibits no dispersion. Using three models as examples, two of which can be exactly solved by bosonization, and one that has been realized in experiment, we further demonstrate the gauge violation spectroscopy can be used to detect the confinement and deconfinement phases. In the confinement phase, it shows a δ-function behavior, while in the deconfinement phase, it has a finite width.
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spelling doaj.art-da86c09092e446ec849d0eae0095af912024-04-12T17:37:58ZengAmerican Physical SocietyPhysical Review Research2643-15642024-01-016101304710.1103/PhysRevResearch.6.013047Gauge violation spectroscopy of synthetic gauge theoriesHao-Yue QiWei ZhengRecently synthetic gauge fields have been implemented on quantum simulators. Unlike the gauge fields in the real world, in synthetic gauge fields, the gauge charge can fluctuate and gauge invariance can be violated, which leads to rich physics unexplored before. In this work, we first propose the gauge violation spectroscopy as a powerful experimentally accessible measurement of synthetic gauge theories. We show that the gauge violation spectroscopy exhibits no dispersion. Using three models as examples, two of which can be exactly solved by bosonization, and one that has been realized in experiment, we further demonstrate the gauge violation spectroscopy can be used to detect the confinement and deconfinement phases. In the confinement phase, it shows a δ-function behavior, while in the deconfinement phase, it has a finite width.http://doi.org/10.1103/PhysRevResearch.6.013047
spellingShingle Hao-Yue Qi
Wei Zheng
Gauge violation spectroscopy of synthetic gauge theories
Physical Review Research
title Gauge violation spectroscopy of synthetic gauge theories
title_full Gauge violation spectroscopy of synthetic gauge theories
title_fullStr Gauge violation spectroscopy of synthetic gauge theories
title_full_unstemmed Gauge violation spectroscopy of synthetic gauge theories
title_short Gauge violation spectroscopy of synthetic gauge theories
title_sort gauge violation spectroscopy of synthetic gauge theories
url http://doi.org/10.1103/PhysRevResearch.6.013047
work_keys_str_mv AT haoyueqi gaugeviolationspectroscopyofsyntheticgaugetheories
AT weizheng gaugeviolationspectroscopyofsyntheticgaugetheories