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

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

URL: http://arxiv.org/abs/2305.07032v2
Date: Mon, 15 May 2023 10:43:20 GMT
Title: Ergodicity breaking from Rydberg clusters in a driven-dissipative many-body system
Authors: Dong-Sheng Ding and Zhengyang Bai and Zong-Kai Liu and Bao-Sen Shi and Guang-Can Guo and Weibin Li and C. Stuart. Adams
Abstract summary: We report experimental evidence of a transition from ergodic towards ergodic breaking dynamics in driven-dissipative Rydberg atomic gases. The broken symmetry in the limit cycle is a direct manifestation of many-body interactions, which is verified by tuning atomic densities.
Score: 2.3551989288556774
License: http://creativecommons.org/licenses/by/4.0/
Abstract: 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.

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