Anderson model in a superconductor: Φ-derivable theory

Ari T. Alastalo; Robert J. Joynt; Martti M. Salomaa

doi:10.1088/0953-8984/10/3/003

Anderson model in a superconductor: Φ-derivable theory

Ari T. Alastalo
, Robert J. Joynt
, Martti M. Salomaa

Not published at VTT

Helsinki University of Technology
University of Wisconsin-Madison

Research output: Contribution to journal › Other journal contribution › Scientific

6 Citations (Scopus)

Abstract

We introduce a new φ-derivable approach for the Anderson impurity model in a BCS superconductor. The regime of validity of this conserving theory extends well beyond that of the Hartree - Fock approximation. This is the first generalization of the U-perturbation theory to encompass a superconductor.

Original language	English
Pages (from-to)	L63-L68
Journal	Journal of Physics: Condensed Matter
Volume	10
Issue number	3
DOIs	https://doi.org/10.1088/0953-8984/10/3/003
Publication status	Published - 1998
MoE publication type	B1 Article in a scientific magazine

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10.1088/0953-8984/10/3/003

https://www.scopus.com/inward/record.uri?eid=2-s2.0-0031697301&doi=10.1088%2f0953-8984%2f10%2f3%2f003&partnerID=40&md5=d7dd536d48184edcc654517df242c1b9

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@article{0025b30e03264a1982b661ee1e718fa3,

title = "Anderson model in a superconductor: Φ-derivable theory",

abstract = "We introduce a new φ-derivable approach for the Anderson impurity model in a BCS superconductor. The regime of validity of this conserving theory extends well beyond that of the Hartree - Fock approximation. This is the first generalization of the U-perturbation theory to encompass a superconductor.",

author = "Alastalo, \{Ari T.\} and Joynt, \{Robert J.\} and Salomaa, \{Martti M.\}",

note = "Cited By :2 Export Date: 16 May 2018",

year = "1998",

doi = "10.1088/0953-8984/10/3/003",

language = "English",

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pages = "L63--L68",

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TY - JOUR

T1 - Anderson model in a superconductor: Φ-derivable theory

AU - Alastalo, Ari T.

AU - Joynt, Robert J.

AU - Salomaa, Martti M.

N1 - Cited By :2 Export Date: 16 May 2018

PY - 1998

Y1 - 1998

N2 - We introduce a new φ-derivable approach for the Anderson impurity model in a BCS superconductor. The regime of validity of this conserving theory extends well beyond that of the Hartree - Fock approximation. This is the first generalization of the U-perturbation theory to encompass a superconductor.

AB - We introduce a new φ-derivable approach for the Anderson impurity model in a BCS superconductor. The regime of validity of this conserving theory extends well beyond that of the Hartree - Fock approximation. This is the first generalization of the U-perturbation theory to encompass a superconductor.

U2 - 10.1088/0953-8984/10/3/003

DO - 10.1088/0953-8984/10/3/003

M3 - Other journal contribution

SN - 0953-8984

VL - 10

SP - L63-L68

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

IS - 3

ER -

Anderson model in a superconductor: Φ-derivable theory

Abstract

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