A two-loop calculation about a quantum mechanical instanton

Michael Lowe, Michael Stone

Research output: Contribution to journalArticlepeer-review


We test the functional approach to tunnelling by using the sine-Gordon "instanton" to calculate the second term in the asymptotic expansion of the width of the lowest band in a periodic potential.

Original languageEnglish (US)
Pages (from-to)177-188
Number of pages12
JournalNuclear Physics, Section B
Issue number1
StatePublished - Apr 17 1978
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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