Anisotropic admixture in color-superconducting quark matter
M. Buballa, J. Hosek, M. Oertel
Abstract
The analysis of color-superconducting two-flavor deconfined quark matter at moderate densities is extended to include a particular spin-1 Cooper pairing of those quarks which do not participate in the standard spin-0 diquark condensate. (i) The relativistic spin-1 gap Delta' implies spontaneous breakdown of rotation invariance manifested in the form of the quasi-fermion dispersion law. (ii) The critical temperature of the anisotropic component is approximately given by the relation Tc'~ Delta'(T=0)/3. (iii) For massless fermions the gas of anisotropic Bogolyubov-Valatin quasiquarks becomes effectively gapless and two-dimensional. Consequently, its specific heat depends quadratically on temperature. (iv) All collective Nambu-Goldstone excitations of the anisotropic phase have a linear dispersion law and the whole system remains a superfluid. (v) The system exhibits an electromagnetic Meissner effect.
Create a lesson
Related papers
A Duality Model in Which Dual QCD Becomes Hydrodynamics
Noriaki Aibara, So Katagiri, Yoshiki Matsuoka et al.
Probing Lorentz Symmetry Violation via Hadroproduction in Electroweak Pair Annihilation
S. Mohammad Moosavi Nejad, Vahid Ekraminasab
What Does Precision Spectroscopy Actually Constrain about X17 Couplings?
Raoul Serao, Antonio Capolupo
From lattice QCD thermodynamics to an effective quasiparticle description of gluonic matter at finite temperature
Cheng-Gang Guo, La-Yuan Peng, Zhen-Yan Lu et al.
Investigations on the low-lying cccqq resonances in a constituent quark model
Yue-Mei Yin, mao-jun Yan, Chun-Sheng An et al.
Hybrid Hadrons: Origins and Development
Eric S. Swanson