Spectroscopy of elementary excitations from quench dynamics in a dipolar XY Rydberg simulator
The nature and spectrum of elementary excitations are defining features of a many-body system. In this study, we used a Rydberg quantum simulator to demonstrate a form of spectroscopy, called quench spectroscopy, that probes these low-energy excitations. We illustrated the method on a two-dimensional simulation of the spin-1/2 dipolar XY model. Through microscopic measurements of the spatial spin correlation dynamics following a quench, we extracted the dispersion relation of the elementary excitations for both ferro- and antiferromagnetic couplings. The ferromagnet exhibits elementary excitations behaving as linear spin waves, whereas in the antiferromagnet, spin waves appear to decay, suggesting the presence of strong nonlinearities. Our demonstration highlights the importance of power-law interactions on the excitation spectrum of a many-body system.
Authors
- Norman Y. Yao (ORCID: https://orcid.org/0000-0003-0194-7266)
- Gabriel Emperauger
- Antoine Browaeys (ORCID: https://orcid.org/0000-0001-9941-8869)
- Shubhayu Chatterjee (ORCID: https://orcid.org/0000-0001-9599-8456)
- Tommaso Roscilde (ORCID: https://orcid.org/0000-0003-2398-0841)
- Bastien Gély (ORCID: https://orcid.org/0009-0008-7613-778X)
- Fabio Mezzacapo (ORCID: https://orcid.org/0000-0002-6794-5573)
- Marcus Bintz (ORCID: https://orcid.org/0000-0002-4548-3953)
- Guillaume Bornet (ORCID: https://orcid.org/0000-0002-2583-2343)
- Daniel Barredo (ORCID: https://orcid.org/0000-0001-5307-1927)
- Thierry Lahaye (ORCID: https://orcid.org/0000-0002-2260-9859)
- Filippo Caleca (ORCID: https://orcid.org/0009-0005-4498-3680)
- Cheng Chen (ORCID: https://orcid.org/0000-0002-1574-2440)
- Vincent Liu (ORCID: https://orcid.org/0000-0002-3419-2990)
Institutions
- Université Claude Bernard Lyon 1 (FR)
- École Normale Supérieure de Lyon (FR)
- Centre National de la Recherche Scientifique (FR)
- Harvard University (US)
- Université Paris-Saclay (FR)
- Laboratoire de Physique de l'ENS de Lyon (FR)
- Laboratoire Charles Fabry (FR)
- Nanomaterials and Nanotechnology Research Center (ES)
- Carnegie Mellon University (US)
Publication Details
- Journal
- Science
- Published
- 2025-06-19
- DOI
- https://doi.org/10.1126/science.adn0618
- Citations
- 10
- Primary Topic
- Quantum Chromodynamics and Particle Interactions
- Type
- article
- Field-Weighted Citation Impact
- 18.70