Minimal color-flavor-locked--nuclear interface

Alford, Mark; Rajagopal, Krishna; Reddy, Sanjay; Wilczek, Frank

doi:10.1103/PhysRevD.64.074017

Title: Minimal color-flavor-locked--nuclear interface

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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 (CFL) 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.

Authors:: Alford, Mark; Rajagopal, Krishna; Reddy, Sanjay; Wilczek, Frank

Publication Date:: Mon Oct 01 00:00:00 EDT 2001

Sponsoring Org.:: (US)

OSTI Identifier:: 40277407

DOE Contract Number:: FG03-00ER4132; DF-FC02-94ER40818

Resource Type:: Journal Article

Journal Name:: Physical Review D

Additional Journal Information:: Journal Volume: 64; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.64.074017; Othernumber: PRVDAQ000064000007074017000001; 018119PRD; PBD: 1 Oct 2001; Journal ID: ISSN 0556-2821

Publisher:: The American Physical Society

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BOUNDARY LAYERS; CONDENSATES; ELECTRONS; KAONS; NEUTRONS; NUCLEAR MATTER; PROTONS; QUARKS; SURFACE TENSION

Citation Formats


                    Alford, Mark, Rajagopal, Krishna, Reddy, Sanjay, and Wilczek, Frank. Minimal color-flavor-locked--nuclear interface.  United States: N. p., 2001. 
        Web.  doi:10.1103/PhysRevD.64.074017.

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                    Alford, Mark, Rajagopal, Krishna, Reddy, Sanjay, & Wilczek, Frank. Minimal color-flavor-locked--nuclear interface.  United States.  https://doi.org/10.1103/PhysRevD.64.074017

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                    Alford, Mark, Rajagopal, Krishna, Reddy, Sanjay, and Wilczek, Frank. 2001.  
        "Minimal color-flavor-locked--nuclear interface".  United States.  https://doi.org/10.1103/PhysRevD.64.074017.

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@article{osti_40277407,

  title        = {Minimal color-flavor-locked--nuclear interface},

  author       = {Alford, Mark and Rajagopal, Krishna and Reddy, Sanjay and Wilczek, Frank},

  abstractNote = {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 (CFL) 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.},

  doi          = {10.1103/PhysRevD.64.074017},

  url          = {https://www.osti.gov/biblio/40277407},
  journal      = {Physical Review D},

  issn         = {0556-2821},

  number       = 7,

  volume       = 64,

  place        = {United States},

  year         = {Mon Oct 01 00:00:00 EDT 2001},

  month        = {Mon Oct 01 00:00:00 EDT 2001}

}

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