title: Zeno and anti-Zeno effects for quantum Brownian motion.
abstract: 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.
authors.affiliation: Department of Physics, University of Turku, Turun yliopisto, FIN-20014 Turku, Finland.
authors.forename: Sabrina
authors.initials: S
authors.lastname: Maniscalco
authors.forename: Jyrki
authors.initials: J
authors.lastname: Piilo
authors.forename: Kalle-Antti
authors.initials: KA
authors.lastname: Suominen