p-wave Holographic Superconductors and five-dimensional gauged Supergravity

Nov, 2010
35 pages
Published in:
  • JHEP 01 (2011) 056
e-Print:
Report number:
  • ICCUB-10-104

Citations per year

2010201420182022202402468
Abstract: (arXiv)
We explore five-dimensional N=4{\cal N}=4 SU(2)×U(1)SU(2)\times U(1) and N=8{\cal N}=8 SO(6) gauged supergravities as frameworks for condensed matter applications. These theories contain charged (dilatonic) black holes and 2-forms which have non-trivial quantum numbers with respect to U(1) subgroups of SO(6). A question of interest is whether they also contain black holes with two-form hair with the required asymptotic to give rise to holographic superconductivity. We first consider the N=4{\cal N}=4 case, which contains a complex two-form potential AμνA_{\mu\nu} which has U(1) charge ±1\pm 1. We find that a slight generalization, where the two-form potential has an arbitrary charge qq, leads to a five-dimensional model that exhibits second-order superconducting transitions of p-wave type where the role of order parameter is played by AμνA_{\mu\nu}, provided q5.6q \gtrsim 5.6. We identify the operator that condenses in the dual CFT, which is closely related to N=4{\cal N}=4 Super Yang-Mills theory with chemical potentials. Similar phase transitions between R-charged black holes and black holes with 2-form hair are found in a generalized version of the N=8{\cal N}=8 gauged supergravity Lagrangian where the two-forms have charge q1.8q\gtrsim 1.8.
  • black hole: hair
  • dimension: 5
  • field theory: conformal
  • temperature: Hawking
  • potential: chemical
  • dimension: 10
  • critical phenomena: superconductivity
  • free energy
  • conductivity
  • SO(6)