Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-05-20
Phys.Lett. B543 (2002) 139-146
Physics
High Energy Physics
High Energy Physics - Phenomenology
Final version to be published on Physics Letters, 16 pages, 2 figures
Scientific paper
10.1016/S0370-2693(02)02426-7
The recent study by Bowers and Rajagopal on the possible structures for the QCD crystalline color superconducting phase favors a cubic structure and allows for a first discussion of the QCD dynamics in the crystalline phase. The cubic structure leads to complete breaking of traslation invariance and to three phonon modes. We discuss the expected form of the effective Lagrangian and the phonon dispersion laws assuming the proposed crystal structure. Besides the interest for QCD and the related possible relevance to compact stars these considerations may become useful to atomic systems exhibiting crystalline superfluidity.
Casalbuoni Roberto
Gatto Raoul
Nardulli Giuseppe
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