Gapless color-flavor-locked quark matter.

摘要: In neutral cold quark matter that is so dense the strange mass Ms unimportant, all three flavors pair in a color-flavor locked (CFL) pattern, and nine fermionic quasiparticles have gap Delta (or 2Delta). We argue that, as density decreases increases), there quantum phase transition (at M(2s/mu approximately 2Delta) to new "gapless CFL phase" which only seven gap. There still an unbroken U(1)(Q) gluon/photon, but, unlike CFL, gapless Q conductor with (charged) quasiquarks nonzero electron at zero temperature, its low energy effective theory astrophysical properties are qualitatively new. At transition, dispersion relations of both quadratic, but for larger M2s/mu, one becomes conventionally linear while other remains up tiny corrections.