Quantum correction to the discrete breather in capacitively-coupled intrinsic Josephson junctions

Tomio Koyama; Masahiko Machida

doi:10.1016/j.physc.2007.04.008

Quantum correction to the discrete breather in capacitively-coupled intrinsic Josephson junctions

Tomio Koyama, Masahiko Machida

Institute for Materials Research (IMR)

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

Abstract

Macroscopic quantum tunneling (MQT) of a discrete breather is investigated in a stack of capacitively-coupled intrinsic Josephson junctions. The quantum escape rate of a breather trapped in a false vacuum is derived within the instanton approximation. We predict the escape rate is enhanced by the capacitive coupling between junctions.

Original language	English
Pages (from-to)	1321-1322
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	460-462 II
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2007.04.008
Publication status	Published - 2007 Sep 1

Keywords

Discrete breather
Intrinsic Josephson junctions
Macroscopic quantum tunneling

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2007.04.008

Cite this

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title = "Quantum correction to the discrete breather in capacitively-coupled intrinsic Josephson junctions",

abstract = "Macroscopic quantum tunneling (MQT) of a discrete breather is investigated in a stack of capacitively-coupled intrinsic Josephson junctions. The quantum escape rate of a breather trapped in a false vacuum is derived within the instanton approximation. We predict the escape rate is enhanced by the capacitive coupling between junctions.",

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author = "Tomio Koyama and Masahiko Machida",

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AU - Machida, Masahiko

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N2 - Macroscopic quantum tunneling (MQT) of a discrete breather is investigated in a stack of capacitively-coupled intrinsic Josephson junctions. The quantum escape rate of a breather trapped in a false vacuum is derived within the instanton approximation. We predict the escape rate is enhanced by the capacitive coupling between junctions.

AB - Macroscopic quantum tunneling (MQT) of a discrete breather is investigated in a stack of capacitively-coupled intrinsic Josephson junctions. The quantum escape rate of a breather trapped in a false vacuum is derived within the instanton approximation. We predict the escape rate is enhanced by the capacitive coupling between junctions.

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KW - Intrinsic Josephson junctions

KW - Macroscopic quantum tunneling

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JO - Physica C: Superconductivity and its Applications

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SN - 0921-4534

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ER -

Quantum correction to the discrete breather in capacitively-coupled intrinsic Josephson junctions

Abstract

Keywords

ASJC Scopus subject areas

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