2026-04-13T06:54:05Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/3990962026-01-22T04:42:01Zcom_2072_1033col_2072_452950

urn:hdl:2117/399096 Phase separation in binary Bose mixtures at finite temperature Spada, Gabriele Parisi, L. Pascual López, Gerard Parker, Nicholas G. Billam, Thomas P. Pilati, Sebastiano Boronat Medico, Jordi Giorgini, Stefano Àrees temàtiques de la UPC::Física Bose-Einstein condensation Monte Carlo method Computational physics Condensació de Bose-Einstein Montecarlo, Mètode de We investigate the magnetic behavior of finite-temperature repulsive two-component Bose mixtures by means of exact path-integral Monte-Carlo simulations. Novel algorithms are implemented for the free energy and the chemical potential of the two components. Results on the magnetic susceptibility suggest that the conditions for phase separation are not modified from the zero temperature case. This contradicts previous predictions based on approximate theories. We also determine the temperature dependence of the chemical potential and the contact parameters for experimentally relevant balanced mixtures. Peer Reviewed Postprint (published version) 2023-10-18 Article http://creativecommons.org/licenses/by/4.0/ Open Access Attribution 4.0 International