Derivation of hydrodynamics for the gapless mode in the BEC-BCS crossover from the exact one-loop effective action |
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| Authors: | Lee Da-Shin Lin Chi-Yong Rivers Ray J |
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| Affiliation: | Department of Physics, National Dong Hwa University, Hua-Lien, Taiwan 974, Republic of China. |
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| Abstract: | We derive generalized two-superfluid continuity equations for the BEC-BCS crossover in the presence of a Feshbach resonance at T=0. In addition, we calculate the velocity of sound throughout both BCS and Bose-Einstein condensation (BEC) regimes. |
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