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Derivation of hydrodynamics for the gapless mode in the BEC-BCS crossover from the exact one-loop effective action by Lee, Da-Shin; Lin, Chi-Yong; Rivers, Ray J. is a scholarly article available to read on EtoBox.

What is Derivation of hydrodynamics for the gapless mode in the BEC-BCS crossover from the exact one-loop effective action about?

We show that many hydrodynamical properties of the BEC/BCS crossover in the presence of a Feshbach resonance at T=0 can be derived easily from the derivative expansion of the (exact) fully renormalized one-loop effective action. In particular, we calculate the velocity of sound throughout the BCS and BEC regimes and derive the generalized superfluid continuity equations for the composite two-fluid system.

Author

Lee, Da-Shin; Lin, Chi-Yong; Rivers, Ray J.

Published

2006

Language

EN