Tunnel splittings for one-dimensional potential wells revisited

Anupam Garg

doi:10.1119/1.19458

Tunnel splittings for one-dimensional potential wells revisited

Anupam Garg^*

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

96 Scopus citations

Abstract

The Wentzel-Kramers-Brillouin and instanton answers for the tunnel splitting of the ground state in a symmetric double-well potential are both reduced to an expression involving only functionals of the potential, without the need for solving any auxilliary problems. This formula is applied to simple model problems. The prefactor for the splitting in the textbook by Landau and Lifshitz is amended so as to apply to the ground and low lying excited states.

Original language	English (US)
Pages (from-to)	430-437
Number of pages	8
Journal	American Journal of Physics
Volume	68
Issue number	5
DOIs	https://doi.org/10.1119/1.19458
State	Published - May 2000

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1119/1.19458

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Tunnel splittings for one-dimensional potential wells revisited

Abstract

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