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03 October 2022
  » arxiv » nucl-th/0405054

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Phase Structure of 2-Flavor Quark Matter: Heterogeneous Superconductors
Sanjay Reddy ; Gautam Rupak ;
Date 20 May 2004
Journal Phys.Rev. C71 (2005) 025201
Subject nucl-th astro-ph hep-ph
AbstractWe analyze the free energy of charge and color neutral 2-flavor quark matter within the BCS approximation. We consider both the homogeneous gapless superconducting phase and the heterogeneous mixed phase where normal and BCS superconducting phases coexist. We calculate the surface tension between normal and superconducting phases and use it to compare the free energies of the gapless and mixed phases. Our calculation, which retains only the leading order gradient contribution to the free energy, indicates that the mixed phase is energetically favored over an interesting range of densities of relevance to 2 flavor quark matter in neutron stars.
Source arXiv, nucl-th/0405054
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