Canonical formulation of quantum tunneling with dissipation

Kazuo Fujikawa, Satoshi Iso, Misao Sasaki, Hiroshi Suzuki

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)


The tunneling in a double-well potential with dissipation is formulated without referring to instantons. This formulation, in the domain of small dissipation, goes beyond the instanton approximation. Several applications of this formulation for the Ohmic case are presented, and we show that the virtual mixing of excited states induced by dissipative interactions tends to enhance the tunneling rate. This enhancement effect becomes dominant for a super-Ohmic case.

Original languageEnglish
Pages (from-to)1093-1096
Number of pages4
JournalPhysical review letters
Issue number8
Publication statusPublished - 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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