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P-Wave Meson Condensation in High Density QCD | | Thomas Schaefer
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17 Aug 2005 | | Subject: | hep-ph nucl-th | | Affiliation: | North Carolina State | | Abstract: | We study the effect of a non-zero strange quark mass on the color-flavor-locked (CFL) phase of high density quark matter. We have previously shown that for a strange quark mass $m_ssim m_u^{1/3}Delta^{2/3}$ the CFL state becomes unstable toward the formation of a neutral kaon condensate. Recently, several authors discovered that for $m_ssim (2Delta p_F)^{1/2}$ the CFL state contains gapless fermions, and that the gapless modes lead to an instability in current-current correlation functions. Using an effective theory of the CFL state we demonstrate that this instability is resolved by the formation of an inhomogeneous meson condensate, analogous to Migdal’s p-wave pion condensate. This state has a non-zero meson current which is canceled by a backflow of gapless fermions. | | Source: | arXiv, hep-ph/0508190 | | Services: | Forum | Review | PDF | Favorites | |
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