Lattice-enabled detection of spin-dependent three-body interactions

Fuente: arXiv
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Autori principali: Binegar, C., Austin-Harris, J. O., Begg, S. E., Sigdel, P., Bilitewski, T., Liu, Y.
Natura: Preprint
Pubblicazione: 2025
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author Binegar, C.
Austin-Harris, J. O.
Begg, S. E.
Sigdel, P.
Bilitewski, T.
Liu, Y.
author_facet Binegar, C.
Austin-Harris, J. O.
Begg, S. E.
Sigdel, P.
Bilitewski, T.
Liu, Y.
contents We present the experimental detection of coherent three-body interactions, often masked by stronger two-body effects, through nonequilibrium spin dynamics induced by controllably quenching lattice-confined spinor gases. Three-body interactions are characterized through both real-time and frequency domain analyses of the observed dynamics. Our results, well-described by an extended Bose-Hubbard model, further demonstrate the importance of three-body interactions for correctly determining atom distributions in lattice systems, which has applications in quantum sensing via spin singlets. The techniques demonstrated in this work can be directly applied to other atomic species, offering a promising avenue for future studies of higher-body interactions with broad relevance to strongly-interacting quantum systems.
format Preprint
id arxiv_https___arxiv_org_abs_2510_01158
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Lattice-enabled detection of spin-dependent three-body interactions
Binegar, C.
Austin-Harris, J. O.
Begg, S. E.
Sigdel, P.
Bilitewski, T.
Liu, Y.
Quantum Gases
We present the experimental detection of coherent three-body interactions, often masked by stronger two-body effects, through nonequilibrium spin dynamics induced by controllably quenching lattice-confined spinor gases. Three-body interactions are characterized through both real-time and frequency domain analyses of the observed dynamics. Our results, well-described by an extended Bose-Hubbard model, further demonstrate the importance of three-body interactions for correctly determining atom distributions in lattice systems, which has applications in quantum sensing via spin singlets. The techniques demonstrated in this work can be directly applied to other atomic species, offering a promising avenue for future studies of higher-body interactions with broad relevance to strongly-interacting quantum systems.
title Lattice-enabled detection of spin-dependent three-body interactions
topic Quantum Gases
url https://arxiv.org/abs/2510.01158