Pair Density Wave correlations in the Kondo-Heisenberg Model

Details Pair Density Wave correlations in the Kondo-Heisenberg Model Pair Density Wave correlations in the Kondo-Heisenberg Model

2010-05-04

arxiv.org/abs/1005.0623v2

Phys. Rev. Lett. 105, 146403 (2010)

Physics

Condensed Matter

Superconductivity

Published version. References and supplementary information added

Scientific paper

10.1103/PhysRevLett.105.146403

We show, using density matrix renormalization group calculations complemented by field theoretic arguments, that the spin gapped phase of the one dimensional Kondo-Heisenberg model exhibits quasi-long range superconducting correlations {\it only} at a non-zero momentum. The local correlations in this phase resemble those of the pair density wave state which was recently proposed to describe the phenomenology of the striped ordered high temperature superconductor {La$_{2-x}$Ba$_x$% CuO$_4$}, in which the spin, charge, and superconducting orders are strongly intertwined.

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