Instability of a gapless color superconductor with respect to inhomogeneous fluctuations
arXiv:hep-ph/0603179 · doi:10.1103/PhysRevD.74.074020
Abstract
We systematically apply density functional theory to determine the kind of inhomogeneities that spontaneously develop in a homogeneous gapless phase of neutral two-flavor superfluid quark matter. We consider inhomogeneities in the quark and electron densities and in the phases and amplitude of the order parameter. These inhomogeneities are expected to lead the gapless phase to a BCS-normal coexisting phase, a Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) state with phase oscillations alone, and a LOFF state with amplitude oscillations. We find that which of them the homogeneous system tends towards depends sensitively on the chemical potential separation between up and down quarks and the gradient energies.
15 pages, 3 figures; corrected Eq. (36) and changed content associated with d quark clustering instability
References in corpus (2)
Cited by in corpus (15)
- Color superconductivity in dense quark matter
- Number of the QCD critical points with neutral color superconductivity
- Larkin-Ovchinnikov-Fulde-Ferrell state in two-color quark matter
- Goldstone boson currents in a kaon condensed CFL phase
- Chromomagnetic instability in two-flavor quark matter at nonzero temperature
- On the ground state of gapless two flavor color superconductors
- Higgs instability in gapless superfluidity/superconductivity
- Inhomogeneity driven by Higgs instability in gapless superconductor
- Is gluonic color-spin locked phase stable?
- Meissner screening masses in gluonic phase
- Color superconductivity in ultra-dense quark matter
- Phase diagram of two-flavor quark matter: Gluonic phase at nonzero temperature
- Formation of Gapless Phases of Condensed Color-Flavor Locked Superconducting Quark Matter
- Schwinger-Keldysh approach to tunneling transport at a hadron-quark interface
- Unconventional Color Superconductor