Mechanism of High Temperature Superconductivity in a striped Hubbard Model

Preprint

13 April 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0309572

Abstract

It is shown, using asymptotically exact methods, that the two dimensional repulsive Hubbard model with strongly modulated interactions exhibits ``high temperature superconductivity". Specifically, the explicit modulation, which has the same symmetry as period 4 bond-centered stripes, breaks the system into an alternating array of more and less heavily hole doped, nearly decoupled two-leg ladders. It is shown that this system exhibits a pairing scale determined by the spin-gap of the undoped two-leg ladder, and a phase ordering temperature proportional to a low positive power of the inter-ladder coupling.

Keywords

HIGH TEMPERATURE SUPERCONDUCTIVITY
TEMPERATURE SUPERCONDUCTIVITY
STRIPED HUBBARD
HUBBARD MODEL
LADDER

All Related Versions

Version 1, 2003-09-25, ArXiv
Version 2, 2003-11-26, ArXiv
Version 3, 2003-12-03, ArXiv
Version 4, 2004-02-18, ArXiv
Version 5, 2004-04-13, ArXiv
Published version: Physical Review B, 69 (21), 214519.

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