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Fermionic Quasiparticles in QCD at High Baryon Density

✍ Scribed by Thomas Schäfer

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
154 KB
Volume
774
Category
Article
ISSN
0375-9474

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✦ Synopsis

We study fermionic quasi-particles in QCD at very high baryon density. In the normal quark matter phase unscreened magnetic gluon exchanges lead to non-Fermi liquid behavior. Non-Fermi liquid effects manifest themselves in low energy Green functions that depend on logarithms and fractional powers of energy. In the superfluid phase there is an energy gap for fermionic excitations. Quark mass effects can cause the energy gap to vanish. Gapless fermions in the color flavor locked phase cause an instability towards a state with a non-zero supercurrent.

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