Canonical formulation of quantum tunneling with dissipation

Kazuo Fujikawa; Satoshi Iso; Misao Sasaki; Hiroshi Suzuki

doi:10.1103/PhysRevLett.68.1093

Canonical formulation of quantum tunneling with dissipation

Kazuo Fujikawa, Satoshi Iso, Misao Sasaki, Hiroshi Suzuki

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

49 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1093-1096
Number of pages	4
Journal	Physical review letters
Volume	68
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.68.1093
Publication status	Published - 1992
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.68.1093

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title = "Canonical formulation of quantum tunneling with dissipation",

abstract = "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.",

author = "Kazuo Fujikawa and Satoshi Iso and Misao Sasaki and Hiroshi Suzuki",

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AU - Iso, Satoshi

AU - Sasaki, Misao

AU - Suzuki, Hiroshi

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N2 - 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.

AB - 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.

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DO - 10.1103/PhysRevLett.68.1093

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Canonical formulation of quantum tunneling with dissipation

Abstract

All Science Journal Classification (ASJC) codes

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