Bayesian analysis of astrophysical and laboratory data favors the two-families scenario of coexisting hadronic and strange quark stars over the one-family scenario.
The Minimal CFL-Nuclear Interface
3 Pith papers cite this work. Polarity classification is still indexing.
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abstract
At nuclear matter density, electrically neutral strongly interacting matter in weak equilibrium is made of neutrons, protons and electrons. At sufficiently high density, such matter is made of up, down and strange quarks in the color-flavor locked phase, with no electrons. As a function of increasing density (or, perhaps, increasing depth in a compact star) other phases may intervene between these two phases which are guaranteed to be present. The simplest possibility, however, is a single first order phase transition between CFL and nuclear matter. Such a transition, in space, could take place either through a mixed phase region or at a single sharp interface with electron-free CFL and electron-rich nuclear matter in stable contact. Here we construct a model for such an interface. It is characterized by a region of separated charge, similar to an inversion layer at a metal-insulator boundary. On the CFL side, the charged boundary layer is dominated by a condensate of negative kaons. We then consider the energetics of the mixed phase alternative. We find that the mixed phase will occur only if the nuclear-CFL surface tension is significantly smaller than dimensional analysis would indicate.
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New phenomenological anisotropy profiles in hybrid stars, driven by superconductivity and magnetic fields, lead to enhanced masses and continuous gravitational wave emission.
In the two-flavor NJL model the wave vectors of the inhomogeneous chiral condensate and the single-plane-wave LOFF diquark condensate are never simultaneously nonzero, so the phases do not coexist.
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Is the coexistence of strange quark stars and hadronic stars favored by astrophysical data? A Bayesian analysis
Bayesian analysis of astrophysical and laboratory data favors the two-families scenario of coexisting hadronic and strange quark stars over the one-family scenario.
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Anisotropic hybrid stars: Interplay of superconductivity and magnetic field leading to gravitational waves
New phenomenological anisotropy profiles in hybrid stars, driven by superconductivity and magnetic fields, lead to enhanced masses and continuous gravitational wave emission.
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Interplay between inhomogeneous chiral and crystalline color-superconducting phases in the two-flavor NJL model
In the two-flavor NJL model the wave vectors of the inhomogeneous chiral condensate and the single-plane-wave LOFF diquark condensate are never simultaneously nonzero, so the phases do not coexist.