Collective excitations, instabilities, and ground state in dense quark matter

Abstract

We study the spectrum of light plasmons in the (gapped and gapless) two-flavor color superconducting phases and its connection with the chromomagnetic instabilities and the structure of the ground state. It is revealed that the chromomagnetic instabilities in the 4-7th and 8th gluonic channels correspond to two very different plasmon spectra. These spectra lead us to the unequivocal conclusion about the existence of gluonic condensates (some of which can be spatially inhomogeneous) in the ground state. We also argue that spatially inhomogeneous gluonic condensates should exist in the three-flavor quark matter with the values of the mass of strange quark corresponding to the gapless color-flavor locked state.

arXiv commentRevtex, 5 pages, 4 figures, two figures and clarifications added, to appear in PRD (Rapid Communications)

References in corpus (28)

• NJL-model analysis of dense quark matter
• Inhomogeneous Superconductivity in Condensed Matter and QCD
• Color superconducting quark matter
• The Quark-Gluon Plasma in Equilibrium
• Crystalline Color Superconductivity
• Conformal Phase Transition in Gauge Theories
• The Zero Temperature Chiral Phase Transition in SU(N) Gauge Theories
• Gapless two-flavor color superconductor
• The Crystallography of Color Superconductivity
• Gapless Color-Flavor-Locked Quark Matter
• Two lectures on color superconductivity
• Gapless color superconductivity at zero and at finite temperature
• Chromomagnetic instability in dense quark matter
• Meissner masses in the gCFL phase of QCD
• Chromomagnetic Instability and the LOFF state in a two flavor Color Superconductor
• Screening masses in neutral two-flavor color superconductor
• Evaluating the Gapless Color-Flavor Locked Phase
• Photons in gapless color-flavor-locked quark matter
• Analytical and numerical evaluation of the Debye and Meissner masses in dense neutral three-flavor quark matter
• Gluonic phase in neutral two-flavor dense QCD
• Meson Supercurrent State in High Density QCD
• Gauge dependence identities for color superconducting QCD
• Gluons, tadpoles, and color neutrality in a two-flavor color superconductor
• The Meissner Effect in a Two Flavor LOFF Color Superconductor
• A Neutral Two Flavor Loff Color Superconductor
• Neutral Larkin--Ovchinnikov--Fulde--Ferrell state and chromomagnetic instability in two-flavor dense QCD
• Novel Phases at High Density and their Roles in the Structure and Evolution of Neutron Stars
• Collective modes of color-flavor locked phase of dense QCD at finite temperature

Cited by in corpus (20)

• Color superconductivity in dense quark matter
• The Crystallography of Three-Flavor Quark Matter
• The rigidity of crystalline color superconducting quark matter
• Phase diagram of two-color quark matter at nonzero baryon and isospin density
• Stability conditions and Fermi surface topologies in a superconductor
• Manifestation of Instabilities in Nambu-Jona-Lasinio type models
• Gluonic phases, vector condensates, and exotic hadrons in dense QCD
• Chromomagnetic instability in two-flavor quark matter at nonzero temperature
• On the ground state of gapless two flavor color superconductors
• Meissner screening mass in two-flavor quark matter at nonzero temperature
• Dynamical stabilization of runaway potentials at finite density
• Higgs instability in gapless superfluidity/superconductivity
• Superfluid and Pseudo-Goldstone Modes in Three Flavor Crystalline Color Superconductivity
• Collective modes in asymmetric ultracold Fermi systems
• Is gluonic color-spin locked phase stable?
• Meissner screening masses in gluonic phase
• Phase diagram of two-flavor quark matter: Gluonic phase at nonzero temperature
• Dynamical stabilization of runaway potentials and landscape of vacua at finite density
• Inhomogeneous phase of a Gluon Plasma at finite temperature and density
• Instabilities in two flavor quark matter