Time evolution of decay of two identical quantum particles

Abstract

An analytical solution for the time evolution of decay of two identical non interacting quantum particles seated initially within a potential of finite range is derived using the formalism of resonant states. It is shown that the wave function, and hence also the survival and nonescape probabilities, for factorized symmetric and entangled symmetric/antisymmetric initial states evolve in a distinctive form along the exponentially decaying and nonexponential regimes. Our findings show the influence of the Pauli exclusion principle on decay. We exemplify our results by solving exactly the s-wave delta shell potential model.

14 pages, 3 figures, added references and discussion

References in corpus (2)

• Long-time behavior of many-particle quantum decay
• Decay by tunneling of Bosonic and Fermionic Tonks-Girardeau Gases

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