Spin-one color superconductors: collective modes and effective Lagrangian
arXiv:1010.1986 · doi:10.1016/j.nuclphysa.2011.01.014
Abstract
We investigate the collective excitations in spin-one color superconductors. We classify the Nambu--Goldstone modes by the pattern of spontaneous symmetry breaking, and then use the Ginzburg--Landau theory to derive their dispersion relations. These soft modes play an important role for the low-energy dynamics of the system such as the transport phenomena and hence are relevant for late-stage evolution of neutron stars. In the case of the color-spin-locking phase, we use a functional technique to obtain the low-energy effective action for the physical Nambu--Goldstone bosons that survive after gauging the color symmetry.
arXiv comment17 pages
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- Influence of the stiffness of the equation of state and in-medium effects on the cooling of compact stars
- Quasi-Nambu-Goldstone modes in nonrelativistic systems
- Vector-boson condensates, spin-triplet superfluidity of paired neutral and charged fermions, and pairing of nucleons
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- Chiral random matrix theory for single-flavor spin-one Cooper pairing
- Some recent progress on quark pairings in dense quark and nuclear matter
- Mass Effect in Single Flavor Color Superconductivity