Inhomogeneous quantum diffusion and decay of a meta-stable state |
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Authors: | Pulak Kumar Ghosh Debashis BarikDeb Shankar Ray |
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Institution: | Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India |
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Abstract: | We consider the quantum stochastic dynamics of a system whose interaction with the reservoir is considered to be linear in bath co-ordinates but nonlinear in system co-ordinates. The role of the space-dependent friction and diffusion has been examined in the decay rate of a particle from a meta-stable well. We show how the decay rate can be hindered by inhomogeneous dissipation due to nonlinear system–bath coupling strength. |
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