Abstract
We study inhomogeneous solutions of a -dimensional Einstein-Maxwell–scalar theory. Our results provide a holographic model of superconductivity in the presence of a charge density wave sourced by a modulated chemical potential. We find that below a critical temperature superconducting stripes develop. We show that they are thermodynamically favored over the normal state by computing the grand canonical potential. We investigate the dependence of on the modulation’s wave vector, which characterizes the inhomogeneity. We find that it is qualitatively similar to that expected for a weakly coupled Bardeen-Cooper-Schrieer theory, but we point out a quantitative difference. Finally, we use our solutions to compute the conductivity along the direction of the stripes.
4 More- Received 16 November 2010
DOI:https://doi.org/10.1103/PhysRevD.83.064009
© 2011 American Physical Society