Density fingerprint of giant vortices in Fermi gases near a Feshbach resonance

Abstract

The structure of multiply quantized or giant vortex states in atomic Fermi gases across a Feshbach resonance is studied within the context of self-consistent Bogoliubov-de Gennes theory. The particle density profile of vortices with $\kappa >1$ flux quanta is calculated. Owing to $\kappa$ discrete branches of vortex core bound states, inside the core the density oscillates as a function of the distance from the vortex line and displays a non-monotoic dependence on the interaction strengths, in marked contrast to the singly quantized case, in which the density depletes monotonically. This feature, never reported so far, can make a direct visualization of the giant vortices in atomic Fermi gases.

4 pages and 5 figures; Published version in PRA

References in corpus (2)

• Vortices and Superfluidity in a Strongly Interacting Fermi Gas
• Microscopic Structure of a Vortex Line in a Superfluid Fermi Gas

Cited by in corpus (2)

• Magnetization profile and core level spectroscopy in a multiply quantized vortex of imbalanced Fermi superfluids
• Vortex-lattice structures in rotating Bose-Fermi superfluid mixtures