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Dipolar mixtures in checkerboard optical bilayers

Rukmani Bai1,2,* and Luis Santos1,†

  • *Contact author: rukmani.bai@itp.uni-hannover.de
  • †Contact author: santos@itp.uni-hannover.de
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Phys. Rev. A 114, 043314 – Published 29 October, 2026

DOI: https://doi.org/10.1103/35j8-4tr1

Abstract

Ultracold dipolar mixtures in component-dependent optical potentials constitute an interesting platform for the study of the interplay between intra- and intercomponent anisotropic long-range interactions. We study the particular case of binary dipolar mixtures placed in separated bilayers which are displaced in an antimagic wavelength configuration. Using a combination of second-order perturbation theory and cluster-Gutzwiller calculations, we unveil a rich landscape of possible crystalline phases for the two components, showing that, interestingly, intersite hopping may result, via superexchange, in solid-into-solid transitions between different crystalline phases. These crystalline phases and the corresponding transitions can be experimentally realized using, e.g., lanthanide mixtures in optical lattices.

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Phys. Rev. A 114, 043314– Published 29 October, 2026
  • Received 28 July 2026
  • Accepted 9 October 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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