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Gapless two-flavor color superconductor. (English) Zbl 1059.81621

Summary: A new, stable gapless two-flavor color superconducting phase that appears under conditions of local charge neutrality and \(\beta\)-equilibrium is revealed. In this phase, the symmetry of the ground state is the same as in the conventional two-flavor color superconductor. In the low-energy spectrum of this phase, however, there are only two gapped fermionic quasiparticles, and the other four quasiparticles are gapless. The origin and the basic properties of the gapless two-flavor color superconductor are discussed. This phase is a natural candidate for quark matter in cores of compact stars.

MSC:

81V05 Strong interaction, including quantum chromodynamics
82D55 Statistical mechanics of superconductors
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[1] Bailin, D.; Love, A., Phys. Rep., 107, 325 (1984)
[2] Rapp, R.; Schafer, T.; Shuryak, E. V.; Velkovsky, M., Phys. Rev. Lett., 81, 53 (1998)
[3] Brown, W. E.; Liu, J. T.; Ren, H.-C., Phys. Rev. D, 61, 114012 (2000)
[4] Pisarski, R. D.; Rischke, D. H., Phys. Rev. D, 61, 051501 (2000)
[5] Schäfer, T., Nucl. Phys. B, 575, 269 (2000)
[6] Alford, M. G.; Rajagopal, K.; Wilczek, F., Nucl. Phys. B, 537, 443 (1999)
[7] Bowers, J. A.; Rajagopal, K., Phys. Rev. D, 66, 065002 (2002)
[8] Schmitt, A.; Wang, Q.; Rischke, D. H.
[9] Alford, M.; Rajagopal, K., JHEP, 0206, 031 (2002)
[10] Alford, M. G.; Rajagopal, K.; Reddy, S.; Wilczek, F., Phys. Rev. D, 64, 074017 (2001)
[11] Alford, M.; Reddy, S., Phys. Rev. D, 67, 074024 (2003)
[12] Banik, S.; Bandyopadhyay, D.
[13] Steiner, A. W.; Reddy, S.; Prakash, M., Phys. Rev. D, 66, 094007 (2002)
[14] Huang, M.; Zhuang, P. F.; Chao, W. Q., Phys. Rev. D, 67, 065015 (2003)
[15] S. Rüster, Diploma Thesis, J.W. Goethe University, 2003; S. Rüster, Diploma Thesis, J.W. Goethe University, 2003
[16] Blaschke, D.; Fredriksson, S.; Grigorian, H.; Oztas, A. M.
[17] Kiriyama, O.; Yasui, S.; Toki, H., Int. J. Mod. Phys. E, 10, 501 (2001)
[18] Chandrasekhar, B. S., Appl. Phys. Lett., 1, 7 (1962)
[19] Shovkovy, I.; Hanauske, M.; Huang, M., Phys. Rev. D, 67, 103004 (2003)
[20] Sarma, G., J. Phys. Chem. Solids, 24, 1029 (1963)
[21] Rajagopal, K.; Wilczek, F., Phys. Rev. Lett., 86, 3492 (2001)
[22] Neumann, F.; Buballa, M.; Oertel, M., Nucl. Phys. A, 714, 481 (2003)
[23] Miransky, V. A.; Shovkovy, I. A.; Wijewardhana, L. C., Phys. Lett. B, 468, 270 (1999)
[24] Alford, M. G.; Berges, J.; Rajagopal, K., Phys. Rev. Lett., 84, 598 (2000)
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