Tunnel splittings for one-dimensional potential wells revisited

Anupam K Garg*

*Corresponding author for this work

Research output: Contribution to journalArticle

77 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 languageEnglish (US)
Pages (from-to)430-437
Number of pages8
JournalAmerican Journal of Physics
Volume68
Issue number5
DOIs
StatePublished - Jan 1 2000

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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