Using Hartree-Fock-Bogoliubov theory in the Popov approximation, the authors determine the finite-temperature phase diagram of Rabi-coupled Bose mixtures via spin gap softening and analyze collective modes in homogeneous and quasi-1D trapped geometries.
We now extend this analysis to finite temperatures in order to explore how thermal and quantum fluctuations modify the col- lective excitation spectrum across the critical point
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Finite-temperature phase diagram and collective modes of coherently coupled Bose mixtures
Using Hartree-Fock-Bogoliubov theory in the Popov approximation, the authors determine the finite-temperature phase diagram of Rabi-coupled Bose mixtures via spin gap softening and analyze collective modes in homogeneous and quasi-1D trapped geometries.