2002/06/24 by Sun Zhang · 2 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Pulsars and Gravitational Waves Research #Quantum, superfluid, helium dynamics #hep-ph
paper · pdf · doi:10.1016/s0375-9601(02)01716-4
published as Phys.Lett.A307:93-98,2003 · 12 pages
arxiv created 2002/06/24 · openalex publication_date 2003/01/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this paper, we have studied two coupled relativistic superfluids with spontaneous U(1) symmetry breaking, using Poisson bracket technique. After constructing the commutators between thermo-quantities and field quantities, the equations of motion are obtained. These equations describe the system in the frame of two-constituent superfluid theory and provide a clear picture relating the symmetry breaking and the physical quantities explicitly. The interference effect is discussed and the Josephson-type equation is also given. Furthermore, the dissipation effect and entropy production mechanism are presented and the dissipative coefficients are given explicitly in the first-order theory framework.