2014/10/31 by Valéria de C. Souza, Zochil González Arenas, Daniel G. Barci +2
Computer Science · Mathematics · Physics and Astronomy · #Arithmetic #Binary number #Biology #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Josephson effect #Materials science #Mathematics #Physics #Quantum Information and Cryptography #Quantum Mechanics and Applications #Superconductivity #Type (biology) #cond-mat.quant-gas #cond-mat.stat-mech
paper · pdf · doi:10.1016/j.physa.2015.12.146
published in Physica A Statistical Mechanics and its Applications 450, 134-147 (Elsevier BV) · 21 pages, 4 figures. Final version accepted for publication in Physica A
arxiv created 2016/01/05 · openalex publication_date 2016/01/15 · arxiv updated 2016/03/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Motivated by experiments in bosonic mixtures composed of a single element in two different hyperfine states, we study bosonic binary mixtures in the presence of Josephson interactions between species. We focus on a particular model with O(2) isospin symmetry, lifted by an imbalanced population parametrized by a Rabi frequency, ΩR, and a detuning, ν, which couples the phases of both species. We have studied the model at mean-field approximation plus Gaussian fluctuations. We have found that both species simultaneously condensate below a critical temperature Tc and the relative phases are locked by the applied laser phase, α. Moreover, the condensate fractions are strongly dependent on the ratio ΩR/|ν| that is not affected by thermal fluctuations.