Coupled Breathing Oscillations of Two-Component Fermion Condensates in Deformed Traps

Abstract

We investigate collective excitations coupled with monopole and quadrupole oscillations in two-component fermion condensates in deformed traps. The frequencies of monopole and dipole modes are calculated using Thomas-Fermi theory and the scaling approximation. When the trap is largely deformed, these collective motions are decoupled to the transverse and longitudinal breathing oscillation modes. As the trap approaches becoming spherical, however, they are coupled and show complicated behaviors.

18 pages and 8 figures

References in corpus (3)

• Fifty-fold improvement in the number of quantum degenerate fermionic atoms
• Hydrodynamic excitations of trapped dipolar fermions
• Monopole Oscillations and Dampings in Boson and Fermion Mixture in the Time-Dependent Gross-Pitaevskii and Vlasov Equations

Cited by in corpus (7)

• Quadrupole Oscillations in Bose-Fermi Mixtures of Ultracold Atomic Gases made of Yb atoms in the Time-Dependent Gross-Pitaevskii and Vlasov equations
• Shell Effects in the First Sound Velocity of an Ultracold Fermi Gas
• Collective oscillations of a two-component Fermi gas on the repulsive branch
• Breathing Oscillations in Bose - Fermi Mixing Gases with Yb atoms in the Largely Prolate Deformed Traps
• Free Expansion of a Weakly-interacting Dipolar Fermi Gas
• Breathing oscillations and quasi-low-dimensional structures of weakly-interacting degenerate Fermi gases in highly-anisotropic traps
• Deformation Dependence of Breathing Oscillations in Bose - Fermi Mixtures at Zero Temperature