Spatial structure of quark Cooper pairs in a color superconductor
Masayuki Matsuzaki
Abstract
Spatial structure of Cooper pairs with quantum numbers color 3*, I=J=L=S=0 in ud 2 flavor quark matter is studied by solving the gap equation and calculating the coherence length in full momentum range without the weak coupling approximation. Although the gap at the Fermi surface and the coherence length depend on density weakly, the shape of the r-space pair wave function varies strongly with density. This result indicates that quark Cooper pairs become more bosonic at higher densities.
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