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.
Phase separation in binary Bose mixtures at finite temperature / Spada, Gabriele; Parisi, Luca; Pascual, Gerard; Parker, Nicholas G.; Billam, Thomas P.; Pilati, Sebastiano; Boronat, Jordi; Giorgini, Stefano. - In: SCIPOST PHYSICS. - ISSN 2542-4653. - 15:4(2023). [10.21468/scipostphys.15.4.171]
Phase separation in binary Bose mixtures at finite temperature
Spada, Gabriele;Parisi, Luca;Pilati, Sebastiano;Giorgini, Stefano
2023-01-01
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
