Adiabatic Dynamics of the Superconducting Order Parameter

ORAL

Abstract

From the time-dependent variational principle and taking into Berry phase effects, we formulate the dynamics of superconducting order parameter in the region where it evolves much slower compared to the timescale of quasi-particles. Collective mode in this region is calculated and compared with previous result obtained from the random-phase approximation which is valid in the opposite limit. We discuss applications to BCS/BEC states of the quantum Fermi gases.

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Authors

  • Minxi Jiang

    Department of Physics, The University of Texas, Austin, Texas

  • Qian Niu

    The university of Texas at Austin, The University of Texas at Austin, UT Austin Dept of Physics, Department of Physics, The University of Texas, Austin, Texas, University of Texas at Austin