Decay process accelerated by tunneling in its very early stage

Details Decay process accelerated by tunneling in its very early stage Decay process accelerated by tunneling in its very early stage

2002-08-06

arxiv.org/abs/quant-ph/0208030v2

Phys.Rev. A66 (2002) 064102

Physics

Quantum Physics

4 pages, 6 figures; accepted for publication in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.66.064102

We examine a fast decay process that arises in the transition period between the Gaussian and exponential decay processes in quantum decay systems. It is usually expected that the decay is decelerated by a confinement potential barrier. However, we find a case where the decay in the transition period is accelerated by tunneling through a confinement potential barrier. We show that the acceleration gives rise to an appreciable effect on the time evolution of the nonescape probability of the decay system.

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