Strongly Coupled Striped Superconductor with Large Modulation

Details Strongly Coupled Striped Superconductor with Large Modulation Strongly Coupled Striped Superconductor with Large Modulation

2011-10-20

arxiv.org/abs/1110.4632v2

JHEP 1202:026,2012

Physics

Condensed Matter

Strongly Correlated Electrons

24 pages, 6 figures; published version: low T behavior and discussion added

Scientific paper

10.1007/JHEP02(2012)086

We analytically calculate properties of a strongly coupled striped superconductor, with the charge density wave sourced by a modulated chemical potential, in the large modulation wavenumber Q limit. In the absence of a homogeneous term in the chemical potential, we show that the critical temperature scales as a negative power of Q for scaling dimensions \Delta < 3/2, whereas for \Delta > 3/2, there is no phase transition above a certain critical value of Q. The condensate is found to scale as a positive power of Q such that the gap is proportional to Q. We discuss how these results change if a homogeneous term is added to the chemical potential. We compare our analytic results with numerical calculations whenever the latter are available and find good agreement.

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