Flavor Superconductivity from Gauge/Gravity Duality
arXiv:0903.1864 · doi:10.1088/1126-6708/2009/10/067
Abstract
We give a detailed account and extensions of a holographic flavor superconductivity model which we have proposed recently. The model has an explicit field theory realization as strongly coupled N=2 Super Yang-Mills theory with fundamental matter at finite temperature and finite isospin chemical potential. Using gauge/gravity duality, i.e. a probe of two flavor D7-branes in the AdS black hole background, we show that the system undergoes a second order phase transition with critical exponent 1/2. The new ground state may be interpreted as a rho meson superfluid. It shows signatures known from superconductivity, such as an infinite dc conductivity and a gap in the frequency-dependent conductivity. We present a stringy picture of the condensation mechanism in terms of a recombination of strings. We give a detailed account of the evaluation of the non-Abelian Dirac-Born-Infeld action involved using two different methods. Finally we also consider the case of massive flavors and discuss the holographic Meissner-Ochsenfeld effect in our scenario.
23 pages, 22 figures. v2: small corrections and section about dynamical mass generation revised
References in corpus (21)
- Building an AdS/CFT superconductor
- Minkowski-space correlators in AdS/CFT correspondence: recipe and applications
- Holographic Superconductors with Various Condensates
- Metallic AdS/CFT
- A Holographic Superconductor in an External Magnetic Field
- Holographic spectral functions and diffusion constants for fundamental matter
- Superconductivity from gauge/gravity duality with flavor
- Transport Properties of Holographic Defects
- Rho meson condensation at finite isospin chemical potential in a holographic model for QCD
- Holographic vector mesons from spectral functions at finite baryon or isospin density
- Baryon-charge Chemical Potential in AdS/CFT
- Low-temperature behavior of the Abelian Higgs model in anti-de Sitter space
- Characteristic length of an AdS/CFT superconductor
- Exact Gravity Dual of a Gapless Superconductor
- Bright branes for strongly coupled plasmas
- The Stress-Energy Tensor of Flavor Fields from AdS/CFT
- D3/D7 holographic Gauge theory and Chemical potential
- Meson supercurrents and the Meissner effect in the Sakai-Sugimoto model
- Toward a Holographic Model of Superconducting Fermions
- Chemical Potential in the Gravity Dual of a 2+1 Dimensional System
- Dynamical stabilization of runaway potentials at finite density