Simulation of XXZ spin models using sideband transitions in trapped bosonic gases

authored by: Anjun Chu, J. Will, J. Arlt, Carsten Klempt, Ana Maria Rey
Abstract: We theoretically propose and experimentally demonstrate the use of motional sidebands in a trapped ensemble of Rb87 atoms to engineer tunable long-range XXZ spin models. We benchmark our simulator by probing a ferromagnetic to paramagnetic dynamical phase transition in the Lipkin-Meshkov-Glick model, a collective XXZ model plus additional transverse and longitudinal fields, via Rabi spectroscopy. We experimentally reconstruct the boundary between the dynamical phases, which is in good agreement with mean-field theoretical predictions. Our work introduces new possibilities in quantum simulation of anisotropic spin-spin interactions and quantum metrology enhanced by many-body entanglement.
Organisation(s): Institute of Quantum Optics
QuantumFrontiers
CRC 1227 Designed Quantum States of Matter (DQ-mat)
External Organisation(s): Aarhus University
University of Colorado Boulder
National Institute of Standards and Technology (NIST)
Type: Article
Journal: Physical review letters
Volume: 125
No. of pages: 13
ISSN: 0031-9007
Publication date: 07.12.2020
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy(all)
Electronic version(s): https://doi.org/10.48550/arXiv.2004.01282 (Access: Open)
https://doi.org/10.1103/PhysRevLett.125.240504 (Access: Closed)

BibTeX

@article{d5a99a23faf041a0bc896992ce1c736c,
title = "Simulation of XXZ spin models using sideband transitions in trapped bosonic gases",
abstract = "We theoretically propose and experimentally demonstrate the use of motional sidebands in a trapped ensemble of Rb87 atoms to engineer tunable long-range XXZ spin models. We benchmark our simulator by probing a ferromagnetic to paramagnetic dynamical phase transition in the Lipkin-Meshkov-Glick model, a collective XXZ model plus additional transverse and longitudinal fields, via Rabi spectroscopy. We experimentally reconstruct the boundary between the dynamical phases, which is in good agreement with mean-field theoretical predictions. Our work introduces new possibilities in quantum simulation of anisotropic spin-spin interactions and quantum metrology enhanced by many-body entanglement.",
author = "Anjun Chu and J. Will and J. Arlt and Carsten Klempt and Rey, {Ana Maria}",
note = "Funding Information: We thank Itamar Kimchi and Diego Barberena for useful discussions. The theoretical work is supported by the AFOSR Grant No. FA9550-18-1-0319, by the DARPA (funded via ARO) Grant No. W911NF-16-1-0576, the ARO single investigator Grant No. W911NF-19-1-0210, the NSF PHY1820885, NSF JILA-PFC PHY-1734006 and NSF QLCI-2016244 grants, and by NIST. The experimental work is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany{\textquoteright}s Excellence Strategy–EXC-2123 QuantumFrontiers–390837967, and through CRC 1227 (DQ-mat), project A02. J. A. acknowledges support by the Villum Foundation, the Carlsberg Foundation, and the Danish National Research Foundation through the Center of Excellence “CCQ” (Grant No. DNRF156).",
year = "2020",
month = dec,
day = "7",
doi = "10.48550/arXiv.2004.01282",
language = "English",
volume = "125",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "24",
}