Macroscopic tunneling, decoherence and noise-induced activation

Details Macroscopic tunneling, decoherence and noise-induced activation Macroscopic tunneling, decoherence and noise-induced activation

2006-12-15

arxiv.org/abs/quant-ph/0612137v1

J.Phys.Conf.Ser.67:012027,2007

Physics

Quantum Physics

Contribution to the Proceedings of DICE'06

Scientific paper

10.1088/1742-6596/67/1/012027

We study the effects of the environment at zero temperature on tunneling in an open system described by a static double-well potential. We show that the evolution of the system in an initial Schrodinger cat state, can be summarized in terms of three main physical phenomena, namely decoherence, quantum tunneling and noise-induced activation. Using large-scale numerical simulations, we obtain a detailed picture of the main stages of the evolution and of the relevant dynamical processes

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