Phase Transition in Binary Mixture of Bose Gases

Tran Huu Phat, Le Viet Hoa, Nguyen Tuan Anh, Nguyen Van Long


Based on the Cornwall-Jackiw-Tomboulis (CJT) effective action approach a theoretical formalism is established for studying the Bose-Einstein condensation (BEC) in a binary mixture of Bose gases. The effective potential, which preserves the Goldstone theorem, is found in the Hartree-Fock (HF) approximation. This quantity is then used to consider the equation of state (EOS) and the phase transition of the system.

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