Zeno and anti-zeno effects for quantum Brownian motion
: Maniscalco S, Piilo J, Suominen KA
Publisher: AMERICAN PHYSICAL SOC
: 2006
: Physical Review Letters
: PHYSICAL REVIEW LETTERS
: PHYS REV LETT
: ARTN 130402
: 97
: 13
: 4
: 0031-9007
DOI: https://doi.org/10.1103/PhysRevLett.97.130402(external)
In this Letter, we investigate the occurrence of the Zeno and anti-Zeno effects for quantum Brownian motion. We single out the parameters of both the system and the reservoir governing the crossover between Zeno and anti-Zeno dynamics. We demonstrate that, for high reservoir temperatures, the short time behavior of environment induced decoherence is ultimately responsible for the occurrence of either the Zeno or the anti-Zeno effect. Finally, we suggest a way to manipulate the decay rate of the system and to observe a controlled continuous passage from decay suppression to decay acceleration using engineered reservoirs in the trapped ion context.