Decay width and the shift of a quasistationary state

1987/07/20 by S. A. Gurvitz, G. Kälbermann · 1 voice · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Nuclear physics research studies #Quantum chaos and dynamical systems

paper · doi:10.1103/physrevlett.59.262

openalex publication_date 1987/07/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/18

Abstract

We develop a two-potential approach to the decay of a quasistationary state. The method enables us to obtain a simple algebraic formula for the decay width and the energy shift of a metastable state. The quasiclassical limit of the width found leads to the well-known Gamow formula, this time with a well-defiend preexponential factor. The energy shift together with its quasiclassical limit is obtained in closed form.

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