Density-wave ordering in a unitary Fermi gas with photon-mediated interactions.

ABSTRACT: A density wave (DW) is a fundamental type of long-range order in quantum matter tied to self-organization into a crystalline structure. The interplay of DW order with superfluidity can lead to complex scenarios that pose a great challenge to theoretical analysis. In the past decades, tunable quantum Fermi gases have served as model systems for exploring the physics of strongly interacting fermions, including most notably magnetic ordering¹, pairing and superfluidity², and the crossover from a Bardeen-Cooper-Schrieffer superfluid to a Bose-Einstein condensate³. Here, we realize a Fermi gas featuring both strong, tunable contact interactions and photon-mediated, spatially structured long-range interactions in a transversely driven high-finesse optical cavity.

SUBMITTER: Helson V 

PROVIDER: S-EPMC10284702 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature