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Spin-one color superconductors: Collective modes and effective Lagrangian

Oct, 2010

17 pages

Published in:

Nucl.Phys.A 852 (2011) 175-196

e-Print:

1010.1986 [nucl-th]

DOI:

10.1016/j.nuclphysa.2011.01.014

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Abstract: (Elsevier)

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.

Note:

17 pages

Color superconductivity
Spontaneous symmetry breaking
Nambu-Goldstone bosons
Nambu–Goldstone bosons
color: superconductivity
spin: 1
spontaneous symmetry breaking
Goldstone particle
Landau-Ginzburg model
dispersion relation

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Figures(0)

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