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Quantum Brownian motion for periodic coupling to an Ohmic bath

J. Piilo·S. Maniscalco·K. -A. Suominen
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Abstract

We show theoretically how the periodic coupling between an engineered reservoir and a quantum Brownian particle leads to the formation of a dynamical steady state which is characterized by an effective temperature above the temperature of the environment. The average steady state energy of the system has a higher value than expected from the environmental properties. The system experiences repeatedly a non-Markovian behavior -- as a consequence the corresponding effective decay for long evolution times is always on average stronger than the Markovian one. We also highlight the consequences of the scheme to the Zeno--anti-Zeno crossover which depends, in addition to the periodicity $τ$, also on the total evolution time of the system.

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J. Piilo, S. Maniscalco, K. -A. Suominen. 2007-03-08. Quantum Brownian motion for periodic coupling to an Ohmic bath. https://doi.org/10.1103/physreva.75.032105

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