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 multicom...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-04-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-025-02043-y |
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| author | D. Burba G. Juzeliūnas I. B. Spielman L. Barbiero |
| author_facet | D. Burba G. Juzeliūnas I. B. Spielman L. Barbiero |
| author_sort | D. Burba |
| collection | DOAJ |
| description | 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 represent a powerful approach for efficiently combining long-range interactions and frustration in quantum simulations. |
| format | Article |
| id | doaj-art-5da6d1f1e8aa4fa3863754208b3d7d34 |
| institution | DOAJ |
| issn | 2399-3650 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj-art-5da6d1f1e8aa4fa3863754208b3d7d342025-08-20T03:06:54ZengNature PortfolioCommunications Physics2399-36502025-04-018111410.1038/s42005-025-02043-yMany-body phases from effective geometrical frustration and long-range interactions in a subwavelength latticeD. Burba0G. Juzeliūnas1I. B. Spielman2L. Barbiero3Institute of Theoretical Physics and Astronomy, Department of Physics, Vilnius UniversityInstitute of Theoretical Physics and Astronomy, Department of Physics, Vilnius UniversityJoint Quantum Institute, University of Maryland, College ParkInstitute for Condensed Matter Physics and Complex Systems, DISAT, Politecnico di TorinoAbstract 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.https://doi.org/10.1038/s42005-025-02043-y |
| spellingShingle | D. Burba G. Juzeliūnas I. B. Spielman L. Barbiero Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice Communications Physics |
| title | Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice |
| title_full | Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice |
| title_fullStr | Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice |
| title_full_unstemmed | Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice |
| title_short | Many-body phases from effective geometrical frustration and long-range interactions in a subwavelength lattice |
| title_sort | many body phases from effective geometrical frustration and long range interactions in a subwavelength lattice |
| url | https://doi.org/10.1038/s42005-025-02043-y |
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