Journal ArticleDOI
Color Superconductivity in Compact Stars
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In this paper, a brief review of the phenomena expected in cold dense quark matter, colour superconductivity and colour-flavour locking, and some implications of recent developments in their understanding for the physics of compact stars are sketched.Abstract:
After a brief review of the phenomena expected in cold dense quark matter, colour superconductivity and colour-flavour locking, we sketch some implications of recent developments in our understanding of cold dense quark matter for the physics of compact stars. We give a more detailed summary of our recent work on crystalline colour superconductivity and the consequent realization that (some) pulsar glitches may originate in quark matter.read more
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Strange quark matter and compact stars
TL;DR: In this article, the authors give an overview of all these striking physical possibilities, with an emphasis on the astrophysical phenomenology of strange quark matter, and discuss possible observational signatures associated with the theoretically proposed states of matter inside compact stars, and provide most valuable information about the phase diagram of superdense nuclear matter at high baryon number density but low temperature.
Journal ArticleDOI
Inhomogeneous superconductivity in condensed matter and QCD
TL;DR: In this article, a theoretical approach to the LOFF state and its phenomenological applications using the language of the effective field theories is presented, which is of interest both in solid-state and in elementary-particle physics, in particular in quantum chromodynamics at high density and low temperature.
Journal ArticleDOI
Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics
TL;DR: In this article, the authors explore the properties of hadronic matter under extreme conditions of temperature and density, and the determination of the equation of state, the relation between pressure, temperature, and density of such matter.
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High-density quark matter under stress
TL;DR: In this article, the effect of SU(3)-flavor breaking on high-density quark matter was studied, in particular a nonzero electron chemical potential and a finite strange-quark mass.
Journal ArticleDOI
Structure of the Electrospheres of Bare Strange Stars
TL;DR: In this article, the authors considered a thin layer of electrons (the electrosphere) at the quark surface of a bare star, taking into account the surface effects at the boundary with the vacuum.
References
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Journal ArticleDOI
Cosmic separation of phases
TL;DR: In this paper, a first-order QCD phase transition that occurred reversibly in the early universe would lead to a surprisingly rich cosmological scenario, which is at least conceivable that the phase transition would concentrate most of the quark excess in dense, invisible quark nuggets, providing an explanation for the dark matter in terms of QCD effects only.
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Superconductivity in a Strong Spin-Exchange Field
Peter Fulde,Richard A. Ferrell +1 more
TL;DR: In this paper, it was shown that the depaired state has a spatially dependent complex Gorkov field, corresponding to a nonzero pairing momentum in the BCS model, and that the presence of the "normal" electrons from the broken pairs reduces the total current to zero, gives the deblating state some spin polarization, and results in almost normal Sommerfeld specific heat and single-electron tunneling characteristics.
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Upper Limit for the Critical Field in Hard Superconductors
TL;DR: In this paper, an examination of some recent reports dealing with the extremely high critical fields in certain hard superconductors was presented, and it was concluded that the critical fields for these BETA -wolfran compounds are so high that they may be effectively limited at low temperatures by the normal-state paramagnetism.
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QCD at finite baryon density: nucleon droplets and color superconductivity
TL;DR: In this article, a variational procedure was used to study finite-density QCD in an approximation in which the interaction between quarks is modelled by that induced by instantons, and it was shown that uniform states with conventional chiral symmetry breaking have negative pressure with respect to empty space at all but the lowest densities.
Journal ArticleDOI
Color-flavor locking and chiral symmetry breaking in high density QCD
TL;DR: In this paper, a symmetry breaking scheme for QCD with three massless quarks at high baryon density was proposed, where the color and flavor SU(3) color × SU (3) L × SU( 3) R symmetries were broken down to the diagonal subgroup SU(4) color+L + R by the formation of a condensate of quark Cooper pairs.