2009/01/20 by Bert Van Schaeybroeck · 3 citations
Physics and Astronomy · #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Mixing (physics) #Phase (matter) #Phase diagram #Physics #Quantum mechanics #Quantum, superfluid, helium dynamics #Simple (philosophy) #Statistical physics #Strong Light-Matter Interactions #Trap (plumbing) #Work (physics) #Zero temperature #cond-mat.other #cond-mat.stat-mech
paper · pdf · doi:10.1016/j.physa.2013.04.026
published as Physica A 392, 3806 (2013) · 4 pages, 2 figures
arxiv created 2009/01/20 · openalex publication_date 2013/04/23 · arxiv updated 2013/10/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Motivated by the recent experiments on Bose-Einstein mixtures with tunable interactions we study repulsive weakly interacting Bose mixtures at finite temperature. We obtain phase diagrams using Hartree-Fock theory which are directly applicable to experimentally trapped systems. Almost all features of the diagrams can be characterized using simple physical insights. Our work reveals two surprising effects which are dissimilar to a system at zero temperature. First of all, no pure phases exist, that is, at each point in the trap, particles of both species are always present. Second, even for very weak interspecies repulsion when full mixing is expected, condensate particles of both species may be present in a trap without them being mixed.