2020/08/25 by Abdelâali Boudjemâa, Abdelaali Boudjemaa, Karima Abbas · 10 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Compressibility #Condensed matter physics #Homogeneous #Miscibility #Perturbation theory (quantum mechanics) #Physics #Quantum #Quantum mechanics #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions #Superfluidity #Thermodynamics #cond-mat.dis-nn
paper · pdf · doi:10.1103/physreva.102.023325
published in Physical Review A 102(2) (American Physical Society) · 9 pages, 3 figures
arxiv created 2020/08/25 · openalex publication_date 2020/08/25 · arxiv updated 2020/08/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the properties of a homogeneous dilute Bose-Bose gas in a weak-disorder potential at zero temperature. By using the perturbation theory, we calculate the disorder corrections to the condensate density, the equation of state, the compressibility, and the superfluid density as a function of density, strength of disorder, and miscibility parameter. It is found that the disorder potential may lead to modifying the miscibility-immiscibility condition and a full miscible phase turns out to be impossible in the presence of the disorder. We show that the intriguing interplay of the disorder and intra- and interspecies interactions may strongly influence the localization of each component, the quantum fluctuations, and the compressibility, as well as the superfluidity of the system.