Zeno and anti-Zeno effects for quantum Brownian motion |
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Authors: | Maniscalco Sabrina Piilo Jyrki Suominen Kalle-Antti |
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Affiliation: | Department of Physics, University of Turku, Turun yliopisto, FIN-20014 Turku, Finland. |
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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. |
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