Ergodicity breaking from Rydberg clusters in a driven-dissipative many-body system

Fuente: arXiv
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Hauptverfasser: Ding, Dong-Sheng, Bai, Zhengyang, Liu, Zong-Kai, Shi, Bao-Sen, Guo, Guang-Can, Li, Weibin, Adams, C. Stuart.
Format: Preprint
Veröffentlicht: 2023
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author Ding, Dong-Sheng
Bai, Zhengyang
Liu, Zong-Kai
Shi, Bao-Sen
Guo, Guang-Can
Li, Weibin
Adams, C. Stuart.
author_facet Ding, Dong-Sheng
Bai, Zhengyang
Liu, Zong-Kai
Shi, Bao-Sen
Guo, Guang-Can
Li, Weibin
Adams, C. Stuart.
contents It is challenging to probe ergodicity breaking trends of a quantum many-body system when dissipation inevitably damages quantum coherence originated from coherent coupling and dispersive two-body interactions. Rydberg atoms provide a test bed to detect emergent exotic many-body phases and non-ergodic dynamics where the strong Rydberg atom interaction competes with and overtakes dissipative effects even at room temperature. Here we report experimental evidence of a transition from ergodic towards ergodic breaking dynamics in driven-dissipative Rydberg atomic gases. The broken ergodicity is featured by the long-time phase oscillation, which is attributed from the formation of Rydberg excitation clusters in limit cycle phases. The broken symmetry in the limit cycle is a direct manifestation of many-body interactions, which is verified by tuning atomic densities in our experiment. The reported result reveals that Rydberg many-body systems are a promising candidate to probe ergodicity breaking dynamics, such as limit cycles, and enable the benchmark of non-equilibrium phase transition.
format Preprint
id arxiv_https___arxiv_org_abs_2305_07032
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Ergodicity breaking from Rydberg clusters in a driven-dissipative many-body system
Ding, Dong-Sheng
Bai, Zhengyang
Liu, Zong-Kai
Shi, Bao-Sen
Guo, Guang-Can
Li, Weibin
Adams, C. Stuart.
Quantum Gases
Quantum Physics
It is challenging to probe ergodicity breaking trends of a quantum many-body system when dissipation inevitably damages quantum coherence originated from coherent coupling and dispersive two-body interactions. Rydberg atoms provide a test bed to detect emergent exotic many-body phases and non-ergodic dynamics where the strong Rydberg atom interaction competes with and overtakes dissipative effects even at room temperature. Here we report experimental evidence of a transition from ergodic towards ergodic breaking dynamics in driven-dissipative Rydberg atomic gases. The broken ergodicity is featured by the long-time phase oscillation, which is attributed from the formation of Rydberg excitation clusters in limit cycle phases. The broken symmetry in the limit cycle is a direct manifestation of many-body interactions, which is verified by tuning atomic densities in our experiment. The reported result reveals that Rydberg many-body systems are a promising candidate to probe ergodicity breaking dynamics, such as limit cycles, and enable the benchmark of non-equilibrium phase transition.
title Ergodicity breaking from Rydberg clusters in a driven-dissipative many-body system
topic Quantum Gases
Quantum Physics
url https://arxiv.org/abs/2305.07032