Abstract
We investigate universal relations in a spinless Fermi gas near a -wave Feshbach resonance, and show that the momentum distribution has an asymptote proportional to with the proportionality constant—the -wave contact—scaling with the number of closed-channel molecules. We prove the adiabatic sweep theorem for a -wave resonance which reveals the thermodynamic implication of the -wave contact. In contrast to the unitary Fermi gas in which Tan’s contact is universal, the -wave contact depends on the short-range details of the interaction.
- Received 21 May 2015
DOI:https://doi.org/10.1103/PhysRevLett.115.135303
© 2015 American Physical Society
Physics Subject Headings (PhySH)
Atomic, Molecular & Optical