Dynamic Hysteresis Across a Dissipative Multi-Mode Phase Transition

• URL: http://arxiv.org/abs/2312.09848v2
• Date: Thu, 28 Mar 2024 10:39:01 GMT
• Title: Dynamic Hysteresis Across a Dissipative Multi-Mode Phase Transition
• Authors: Marvin Röhrle, Jens Benary, Erik Bernhart, Herwig Ott,
• Abstract summary: We study dynamic sweeps across a first order dissipative phase transition in a multi-mode driven-dissipative system. By changing the temperature of the system we investigate the importance of coherently pumping the system.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Dissipative phase transitions are characteristic features in open quantum systems. Key signatures are the dynamical switching between different states in the vicinity of the phase transition and the appearance of hysteresis. Here, we experimentally study dynamic sweeps across a first order dissipative phase transition in a multi-mode driven-dissipative system. In contrast to previous studies, we perform sweeps of the dissipation strength instead of the driving strength. We extract exponents for the scaling of the hysteresis area in dependence of the sweep time and study the $g^{(2)}(0)$ correlations, which show non-trivial behavior. By changing the temperature of the system we investigate the importance of coherently pumping the system. We compare our results to numerical calculations done for a single mode variant of the system, and find surprisingly good agreement. Furthermore, we identify and discuss the differences between a scan of the dissipation strength and a scan of the driving strength.

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