Vortex Core Structure in Neutral Fermion Superfluids with Population Imbalance

Abstract

Quantized vortex core structure is theoretically investigated in Fermion superfluids with population imbalance for two atom species of neutral atom clouds near a Feshbach resonance. In contrast with vortex core in balance case where the quantum depletion makes a vortex visible through the density profile measurement, the vortex core is filled in and becomes less visible because the quantized discrete bound states are occupied exclusively by the majority species. Yet it is shown that the core can be visible through the minority density profile experiment using phase contrast imaging, revealing an interesting opportunity to examine low-lying Fermionic core bound states unexplored so far.

5 pages, 5 figures, replaced by the version to appear in PRL

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Cited by in corpus (24)

• Symmetry Protected Topological Superfluids and Superconductors --- From the Basics to ${}^3$He ---
• Vortex states in superconductors with strong Pauli-paramagnetic effect
• Vortex structures and zero energy states in the BCS-to-BEC evolution of p-wave resonant Fermi gases
• Vortex state in a Fulde-Ferrell-Larkin-Ovchinnikov superconductor based on the quasiclassical theory
• Rotating quantum turbulence in the unitary Fermi gas
• Multifaceted properties of Andreev bound states: Interplay of symmetry and topology
• Vortex line in spin-orbit coupled atomic Fermi gases
• Multiple-gap structure in electric-field-induced surface superconductivity
• Universal Aspects of Vortex Reconnections across the BCS-BEC Crossover
• Vortex formation in a rotating two-component Fermi gas
• Bogoliubov-de Gennes Soliton Dynamics in Unconventional Fermi Superfluids
• Spin-polarized vortices with reversed circulation
• Radial Fulde-Ferrell-Larkin-Ovchinnikov state in a population-imbalanced Fermi gas
• Vortex core states in superfluid Fermi-Fermi mixtures with unequal masses
• Quantum vortices in fermionic superfluids: from ultracold atoms to neutron stars
• Pair density waves and vortices in an elongated two-component Fermi gas
• Elementary excitations in dipolar spin-1 Bose-Einstein condensates
• Magnetization profile and core level spectroscopy in a multiply quantized vortex of imbalanced Fermi superfluids
• Collective modes in asymmetric ultracold Fermi systems
• Majorana modes in striped two-dimensional inhomogeneous topological superconductors
• Pair-breaking of multi-gap superconductivity under parallel magnetic fields in electric-field-induced surface metallic state
• The phase diagram of two-dimensional fast-rotating ultra-cold fermionic atoms near unitarity
• Vortex lattice in spin-imbalanced unitary Fermi gas
• Effect of Population Imbalance on Vortex Mass in Superfluid Fermi Gases