Supercurrents in an atom-molecule gas in an optical ring lattice
T. Wang J. Javanainen S. F. Yelin
TL;DR
This paper investigates supercurrents in an atom-molecule Fermi gas within a 1D optical ring lattice, revealing pairing and superfluidity through flux quantization and particle mass analysis.
Contribution
It introduces a novel analysis of atom-molecule supercurrents in a ring lattice using diagonalization and flux analogy, highlighting pairing phenomena.
Findings
Fraction of current carried by particles with twice the atomic mass
Evidence of pairing and superfluidity in the system
Flux quantization analogy applied to atom-molecule gas
Abstract
Atom and molecule currents in a Fermi gas in the neighborhood of a Feshbach resonance are studied in a one-dimensional optical ring lattice by directly diagonalizing small models. A rotational analogy of flux quantization is used to show that fraction of the current is carried by particles with twice the mass of an atom, which suggests pairing and superfluidity.
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Taxonomy
TopicsCold Atom Physics and Bose-Einstein Condensates · Atomic and Subatomic Physics Research · Quantum optics and atomic interactions