OFF-DIAGONAL LONG RANGE ORDER IN AN ELECTRON-PHONON MODEL FOR HIGH-Tc SUPERCONDUCTORS

M. Frick, I. Morgenstern, W.von der Linden

Research output: Contribution to journalArticle

Abstract

We study a model for high-Tc superconductors describing both the strong electronic correlations and a coupling of the carriers to anharmonic phonons. The Projector Quantum Monte Carlo Scheme has been employed to investigate ground state properties. We analyze the superconducting properties of the model by directly addressing to the existence of Off-Diagonal Long Range Order (ODLRO). We review the numerical algorithm and discuss the possibility to observe ODLRO. In the presented model, we find ODLRO pointing towards superconductivity instead of the presence of strong electronic correlations. We discuss several features of the superconducting condensate.
Original languageEnglish
Pages (from-to)105-120
Number of pages16
JournalInternational Journal of Modern Physics / C
Volume03
Issue number01
DOIs
Publication statusPublished - 1 Feb 1992

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