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Holographic p-wave superconductor with disorder

  • D. Areán
  • A. Farahi
  • L. A. Pando Zayas
  • I. Salazar Landea
  • A. Scardicchio
Open Access
Regular Article - Theoretical Physics

Abstract

We implement the effects of disorder on a holographic p-wave superconductor by introducing a random chemical potential which defines the local energy of the charge carriers. Since there are various possibilities for the orientation of the vector order parameter, we explore the behavior of the condensate in the parallel and perpendicular directions to the introduced disorder. We clarify the nature of various branches representing competing solutions and construct the disordered phase diagram. We find that moderate disorder enhances superconductivity as determined by the value of the condensate. Though we mostly focus on uncorrelated noise, we also consider a disorder characterized by its spectral properties and study in detail its influence on the spectral properties of the condensate and charge density. We find fairly universal responses of the resulting power spectra characterized by linear functions of the disorder power spectrum.

Keywords

AdS-CFT Correspondence Holography and condensed matter physics (AdS/CMT) 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2015

Authors and Affiliations

  • D. Areán
    • 1
  • A. Farahi
    • 2
  • L. A. Pando Zayas
    • 2
  • I. Salazar Landea
    • 3
    • 4
  • A. Scardicchio
    • 4
    • 5
    • 6
    • 7
    • 8
  1. 1.Max-Planck-Institut für Physik (Werner-Heisenberg-Institut)MunichGermany
  2. 2.Michigan Center for Theoretical Physics, Randall Laboratory of PhysicsUniversity of MichiganAnn ArborUnited States
  3. 3.Instituto de Física La Plata (IFLP) and Departamento de FísicaUniversidad Nacional de La PlataLa PlataArgentina
  4. 4.International Centre for Theoretical Physics (ICTP)TriesteItaly
  5. 5.Physics DepartmentPrinceton UniversityPrincetonUnited States
  6. 6.Physics DepartmentColumbia UniversityNew YorkUnited States
  7. 7.ITS, Graduate CenterCity University of New YorkNew YorkUnited States
  8. 8.INFN, Sezione di TriesteTriesteItaly

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