Quantum Brownian motion for periodic coupling to an Ohmic bath



: Piilo J, Maniscalco S, Suominen KA

Publisher: AMER PHYSICAL SOC

: 2007

: Physical Review A

: PHYSICAL REVIEW A

: PHYS REV A

: ARTN 032105

: 75

: 3

: 6

: 1050-2947

DOI: https://doi.org/10.1103/PhysRevA.75.032105


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 for the Zeno-anti-Zeno crossover which depends, in addition to the periodicity tau, also on the total evolution time of the system.



Last updated on 2024-26-11 at 22:05