Non-Markovian environment induced anomaly in steady state quantum coherence

• URL: http://arxiv.org/abs/2407.03943v1
• Date: Thu, 4 Jul 2024 13:56:43 GMT
• Title: Non-Markovian environment induced anomaly in steady state quantum coherence
• Authors: Arapat Ablimit, Zhao-Ming Wang, Feng-Hua Ren, Paul Brumer, Lian-Ao Wu,
• Abstract summary: Environment induced steady state quantum coherence (SSQC) is a captivating phenomenon that challenges conventional understandings of decoherence. We investigate the dependence of SSQC on environmental memory effects, bath temperature, system-bath coupling strength, and squeezing parameters.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Environment induced steady state quantum coherence (SSQC) is a captivating phenomenon that challenges conventional understandings of decoherence. In this letter, we delve into the foundational aspects of environment-induced SSQC, shedding light on its emergence within the framework of system-bath interactions. Starting from a microscopic system-bath coupled model, we investigate the dependence of SSQC on environmental memory effects, bath temperature, system-bath coupling strength, and squeezing parameters. Our findings reveal that the environment not only acts as a generator but also as a disruptor of SSQC. A peak will exist for a non-Markovian bath, which is a result of competition between these two mechanisms. Interestingly, the peak disappears in Markovian case. Additionally, we observe that the generated SSQC can be further amplified through environment squeezing.

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