Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice.

ABSTRACT: Geometrical frustration and long-range couplings are key contributors to create quantum phases with different properties throughout physics. We propose a scheme where both ingredients naturally emerge in a Raman induced subwavelength lattice. We first demonstrate that Raman-coupled multicomponent quantum gases can realize a highly versatile frustrated Hubbard Hamiltonian with long-range interactions. The deeply subwavelength lattice period leads to strong long-range interparticle repulsion with tunable range and decay. We numerically demonstrate that the combination of frustration and long-range couplings generates many-body phases of bosons, including a range of density-wave and superfluid phases with broken translational and time reversal symmetries, respectively. Our results thus repres

SUBMITTER: Burba D 

PROVIDER: S-EPMC11978520 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature