Impact of independent reservoirs on the quantum Zeno and anti-Zeno effects

• URL: http://arxiv.org/abs/2012.05574v1
• Date: Thu, 10 Dec 2020 10:43:34 GMT
• Title: Impact of independent reservoirs on the quantum Zeno and anti-Zeno effects
• Authors: Irfan Javed, Mohsin Raza, Adam Zaman Chaudhry
• Abstract summary: We look at what happens to a quantum system if it interacts with two independent reservoirs. We show that the presence of the strongly coupled reservoir can actually reduce the decay rate of the quantum system due to the effect of the weakly-coupled reservoir.
• Score: 0.5801044612920815
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this paper, we look into what happens to a quantum system under repeated measurements if it interacts with two independent reservoirs. In particular, we look at the behavior of a two-level system interacting with reservoirs consisting of harmonic oscillators. The interaction with one reservoir is weak with a dissipative-type coupling, while the interaction with the other reservoir is strong with a dephasing-type coupling. Using a polaron transformation, we show that the presence of the strongly coupled reservoir can actually reduce the decay rate of the quantum system due to the effect of the weakly-coupled reservoir.

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