Color Superconductivity in Two- and Three-Flavor Systems at Moderate Densities

Buballa, Michael; Oertel, Micaela

doi:10.1007/978-94-010-0502-9_6

Cited by 3 publications

(3 citation statements)

References 41 publications

(67 reference statements)

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“…There are good reasons to expect that the dynamics of the low-T moderately dense deconfined n c = 3 colored-quark matter of two light flavors is governed by an effective Lagrangian of the SU (3) c ×SU (2) F ×U (1) V ×O(3) invariant form (detailed review of the subject with representative references is Michael Buballa's contribution [4] …”

Section: Anisotropic N C = 3 Qcd Matter Of Colored Quarksmentioning

confidence: 99%

Anisotropic Colored Superfluids

Hošek¹

2004

I Ya Pomeranchuk and Physics at the Turn of the Century

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Abstract. We discuss two instances of anisotropic ordered quantum phases within QCD at finite baryon densities: (1) Fermionic deconfined three-color QCD matter with a spin one quark-quark Cooper pair condensate can exhibit distinct quantum i.e. low-temperature (T ) behaviors on macroscopic scales which bona fide can be observed in neutron stars. (2) Bosonic confined two-color QCD matter with a Bose-Einstein condensate of spin-one baryons can exhibit distinct quantum i.e. low-T behaviors on macroscopic scales which can bona fide be observed in numerical lattice experiments.

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Section: Anisotropic N C = 3 Qcd Matter Of Colored Quarksmentioning

confidence: 99%

Anisotropic Colored Superfluids

Hošek¹

2004

I Ya Pomeranchuk and Physics at the Turn of the Century

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“…The strong interaction is most attractive between quarks in the colour-antisymmetric spin-0 channel, but Fermi-Dirac statistics then require flavour-antisymmetric pairing, involving two different flavours. Well-studied candidates include the 2SC [3,4,13] and CFL [14][15][16] phases of quark matter. At asymptotically high density, the favoured phase of quark matter is the CFL phase.…”

Section: Introductionmentioning

confidence: 99%

Single-flavour and two-flavour pairing in three-flavour quark matter

Alford¹,

Cowan²

2006

J. Phys. G: Nucl. Part. Phys.

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We study single-flavour quark pairing ("self-pairing") in colour-superconducting phases of quark matter, paying particular attention to the difference between scenarios where all three flavours undergo single-flavour pairing, and scenarios where two flavours pair with each other ("2SC" pairing) and the remaining flavour self-pairs. We perform our calculations in the mean field approximation using a pointlike four-fermion interaction based on single gluon exchange. We confirm the result from previous weakly-coupled-QCD calculations, that when all three flavours self-pair the favored channel for each is colour-spin-locked (CSL) pseudoisotropic pairing. However, we find that when the up and down quarks undergo 2SC pairing, they induce a colour chemical potential that disfavors the CSL phase. The strange quarks then self-pair in a "polar" channel that breaks rotational invariance, although the CSL phase may survive in a narrow range of densities.

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“…They can macroscopically occupy the ground state in any overall zero-momentum configuration. Non-relativistic condensed-matter relatives are the superfluid 4 He, and the dilute gases of bosonic atoms. (2) For n c odd (we have in mind only the real world of n c = 3) the ground-state baryons are fermions carrying spin 1/2 or 3/2.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic QCD Superfluids

Hošek¹

2002

Confinement, Topology, and Other Non-Perturbative Aspects of QCD

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We discuss two instances of anisotropic ordered quantum phases within QCD at finite baryon densities: (1) Fermionic deconfined three-color QCD matter with a spin one quark-quark Cooper pair condensate can exhibit distinct quantum i.e. low-temperature (T ) behaviors on macroscopic scales which bona fide can be observed in neutron stars. (2) Bosonic confined two-color QCD matter with a Bose-Einstein condensate of spin-one baryons can exhibit distinct quantum i.e. low-T behaviors on macroscopic scales which can bona fide be observed in numerical lattice experiments.

show abstract

Color Superconductivity in Two- and Three-Flavor Systems at Moderate Densities

Cited by 3 publications

References 41 publications

Anisotropic Colored Superfluids

Anisotropic Colored Superfluids

Single-flavour and two-flavour pairing in three-flavour quark matter

Anisotropic QCD Superfluids

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