2011/06/18 by Han Li, Li Han, C. A. R. Sá de Melo · 2 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Compressibility #Condensed matter physics #Coupling (piping) #Crossover #Entropy (arrow of time) #Isothermal process #Materials science #Physics #Quantum mechanics #Quantum, superfluid, helium dynamics #Spin (aerodynamics) #Spin–orbit interaction #Superfluidity #Thermodynamics #cond-mat.quant-gas
paper · pdf · doi:10.1103/physreva.85.011606
published as Phys. Rev. A 85, 011606(R) (2012)
arxiv created 2011/06/18 · openalex publication_date 2012/01/27 · arxiv updated 2012/01/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We discuss the evolution from BCS to Bose-Einstein condensate (BEC) superfluids in the presence of spin-orbit coupling for a balanced mixture of ultracold fermions. The dependence of several thermodynamic properties, such as chemical potential, order parameter, pressure, entropy, isothermal compressibility, and spin susceptibility tensor on the spin-orbit coupling and interaction parameter at low temperatures are analyzed. We studied both equal Rashba and Dresselhaus (ERD) and the Rashba-only (RO) spin-orbit coupling. Comparisons between the two cases reveal several striking differences in the corresponding thermodynamic quantities. Finally, we propose measuring the isothermal compressibility and spin susceptibility as a way of detecting the effects of the spin-orbit coupling.