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arXiv · 2104.08891

Dissipative phase transition in a spatially-correlated bosonic bath

Saptarshi Saha·Rangeet Bhattacharyya
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Abstract

The presence of symmetries in a closed many-body quantum system results in integrability. For such integrable systems, complete thermalization does not occur. As a result, the system remains non-ergodic. On the other hand, a set of non-interacting atoms connected to a regular bosonic bath thermalizes. Here, we show that such atoms in a spatially-correlated thermal bath can show both the behavior depending on the temperature. At zero temperature, the bath has a large correlation length, and hence it acts as a common environment. In this condition, a set of weak symmetries exist, which prevent thermalization. The system undergoes a symmetry-broken dissipative phase transition of the first order as the temperature rises above zero.

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Saptarshi Saha, Rangeet Bhattacharyya. 2021-04-18. Dissipative phase transition in a spatially-correlated bosonic bath. https://arxiv.org/abs/2104.08891

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