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)