One-particle excitations in strong-coupling superconductors: A new realization of the t-J model

A. G. Rojo, J. O. Sofo, C. A. Balseiro

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We study the one-particle excitations in strong-coupling superconductors described by a negative-U Hubbard Hamiltonian. We show that the problem of single-particle excitation can be mapped onto that of a hole in a polarized antiferromagnetic Heisenberg model. We discussusing a self-consistent diagrammatic approachthe distortion of the superfluid order parameter in the vicinity of the quasiparticle and the connection with the pairing-bag problem.

Original languageEnglish (US)
Pages (from-to)10241-10244
Number of pages4
JournalPhysical Review B
Volume42
Issue number16
DOIs
StatePublished - Jan 1 1990

Fingerprint

bags
excitation

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

@article{bdb60eb169f6457d8d54ea03cf7fc7dc,
title = "One-particle excitations in strong-coupling superconductors: A new realization of the t-J model",
abstract = "We study the one-particle excitations in strong-coupling superconductors described by a negative-U Hubbard Hamiltonian. We show that the problem of single-particle excitation can be mapped onto that of a hole in a polarized antiferromagnetic Heisenberg model. We discussusing a self-consistent diagrammatic approachthe distortion of the superfluid order parameter in the vicinity of the quasiparticle and the connection with the pairing-bag problem.",
author = "Rojo, {A. G.} and Sofo, {J. O.} and Balseiro, {C. A.}",
year = "1990",
month = "1",
day = "1",
doi = "10.1103/PhysRevB.42.10241",
language = "English (US)",
volume = "42",
pages = "10241--10244",
journal = "Physical Review B",
issn = "0163-1829",
number = "16",

}

One-particle excitations in strong-coupling superconductors : A new realization of the t-J model. / Rojo, A. G.; Sofo, J. O.; Balseiro, C. A.

In: Physical Review B, Vol. 42, No. 16, 01.01.1990, p. 10241-10244.

Research output: Contribution to journalArticle

TY - JOUR

T1 - One-particle excitations in strong-coupling superconductors

T2 - A new realization of the t-J model

AU - Rojo, A. G.

AU - Sofo, J. O.

AU - Balseiro, C. A.

PY - 1990/1/1

Y1 - 1990/1/1

N2 - We study the one-particle excitations in strong-coupling superconductors described by a negative-U Hubbard Hamiltonian. We show that the problem of single-particle excitation can be mapped onto that of a hole in a polarized antiferromagnetic Heisenberg model. We discussusing a self-consistent diagrammatic approachthe distortion of the superfluid order parameter in the vicinity of the quasiparticle and the connection with the pairing-bag problem.

AB - We study the one-particle excitations in strong-coupling superconductors described by a negative-U Hubbard Hamiltonian. We show that the problem of single-particle excitation can be mapped onto that of a hole in a polarized antiferromagnetic Heisenberg model. We discussusing a self-consistent diagrammatic approachthe distortion of the superfluid order parameter in the vicinity of the quasiparticle and the connection with the pairing-bag problem.

UR - http://www.scopus.com/inward/record.url?scp=0012331639&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0012331639&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.42.10241

DO - 10.1103/PhysRevB.42.10241

M3 - Article

AN - SCOPUS:0012331639

VL - 42

SP - 10241

EP - 10244

JO - Physical Review B

JF - Physical Review B

SN - 0163-1829

IS - 16

ER -