The sign of Josephson's cos θ-term

W. Zwerger

doi:10.1016/0038-1098(83)90812-8

The sign of Josephson's cos θ-term

W. Zwerger

Universität Hamburg

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

4 Scopus citations

Abstract

Within the tunneling Hamiltonian approximation Kramers-Kronig relations between the amplitudes j_1,2 of the sine and cosine term in the Josephson current are derived. The spectral function ωj₂(ω) determines the supercurrents dissipative response to external a.c.-voltages but has no definite sign. A generla proof is given, that nevertheless the total dissipation always remains positive.

Original language	English
Pages (from-to)	841-843
Number of pages	3
Journal	Solid State Communications
Volume	45
Issue number	9
DOIs	https://doi.org/10.1016/0038-1098(83)90812-8
State	Published - Mar 1983
Externally published	Yes

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title = "The sign of Josephson's cos θ-term",

abstract = "Within the tunneling Hamiltonian approximation Kramers-Kronig relations between the amplitudes j1,2 of the sine and cosine term in the Josephson current are derived. The spectral function ωj2(ω) determines the supercurrents dissipative response to external a.c.-voltages but has no definite sign. A generla proof is given, that nevertheless the total dissipation always remains positive.",

author = "W. Zwerger",

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AB - Within the tunneling Hamiltonian approximation Kramers-Kronig relations between the amplitudes j1,2 of the sine and cosine term in the Josephson current are derived. The spectral function ωj2(ω) determines the supercurrents dissipative response to external a.c.-voltages but has no definite sign. A generla proof is given, that nevertheless the total dissipation always remains positive.

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DO - 10.1016/0038-1098(83)90812-8

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EP - 843

JO - Solid State Communications

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The sign of Josephson's cos θ-term

Abstract

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