Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Supercurrents in color-superconducting quark matter   We review the basic properties of the currCFL-K^0 phase in dense quark
matter. At asymptotically large densities, three-flavor quark matter is in the
color-flavor locked (CFL) state. The currCFL-K^0 state is a way to respond to
``stress'' on the quark Cooper pairing, imposed at more moderate densities by
the strange quark mass and the conditions of electric and color neutrality. We
show how a kaon supercurrent is incorporated in a purely fermionic formalism,
and show that the net current vanishes due to cancellation of fermion and
charge-conjugate fermion contributions.

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The categories of this paper are: chem-ph
16
The categories of this paper are: stat
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The categories of this paper are: mtrl-th
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The categories of this paper are: econ
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The categories of this paper are: adap-org
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The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: nlin
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: q-bio