Friday, August 14, 2009, 2:00 pm — Small Seminar Room, Bldg. 510

Superfluidity occurs in cold systems after the appearance of a quantum condensate that breaks spontaneously a global U(1) symmetry. We review the basic features of relativistic superfluid hydrodynamics, paying special attention to color-flavor locked quark matter. At very low temperatures, transport phenomena is dominated by the contribution of the superfluid phonon, a Goldstone mode of the system. Using low energy effective field theory techniques, one can estimate relaxation time scales and the four viscosity coefficients of the superfluid. We also show how to construct a transport equation for the phonon using a gravity analogue model. Finally, we discuss how the knowledge of all the dissipative processes is needed in astrophysical scenarios for the study of rotational properties of compact stars

Hosted by: Gregory Soyez

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