Title Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice /
Authors Burba, Domantas ; Juzeliƫnas, Gediminas ; Spielman, I. B ; Barbiero, L
DOI 10.1038/s42005-025-02043-y
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Is Part of Communications physics.. Springer Nature. 2025, vol. 8, iss. 1, art. no. 141, p. [1-14].. eISSN 2399-3650
Abstract [eng] 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 represent a powerful approach for efficiently combining long-range interactions and frustration in quantum simulations.
Published Springer Nature
Type Journal article
Language English
Publication date 2025
CC license CC license description