Quantum escape kinetics over a fluctuating barrier

Abstract

The escape rate of a particle over a fluctuating barrier in a double well potential exhibits resonance at an optimum value of correlation time of fluctuation. This has been shown to be important in several variants of kinetic model of chemical reactions . We extend the analysis of this phenomenon of resonant activation to quantum domain to show how quantization significantly enhances resonant activation at low temperature due to tunneling.

References in corpus (4)

• Quantum state-dependent diffusion and multiplicative noise: a microscopic approach
• Insight into Resonant Activation in Discrete Systems
• Noise-induced transition in a quantum system
• Noise-induced quantum transport

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• Periodic force induced stabilization or destabilization of the denatured state of a protein
• Inhomogeneous quantum diffusion and decay of a meta-stable state
• Route to chaos in two-dimensional discrete parametric maps with bistable potentials