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Tunable Confinement-Deconfinement Transition in an Ultracold-Atom Quantum Simulator

Cheng, Yanting and Liu, Shang and Zheng, Wei and Zhang, Pengfei and Zhai, Hui (2022) Tunable Confinement-Deconfinement Transition in an Ultracold-Atom Quantum Simulator. PRX Quantum, 3 (4). Art. No. 040317. ISSN 2691-3399. doi:10.1103/prxquantum.3.040317.

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The one-dimensional lattice Schwinger model has recently been realized by using bosons in optical lattices. This model contains both confinement and deconfinement phases, the phase diagram of which is controlled by the mass of the matter field and the topological angle. Since varying the mass of the matter field is straightforward experimentally, we propose how to tune the topological angle, allowing exploration of the phase diagram from both directions. We propose that direct experimental evidence of confinement and deconfinement can be obtained by measuring whether a physical charge is localized around a fixed gauge charge to screen it. We also discuss the PXP model realized in the Rydberg-atom array, which is equivalent to the lattice Schwinger model when all local gauge charges are fixed as zero. Although the gauge charges are fixed, we can alternatively probe confinement and deconfinement in the PXP model by studying the relative motion of a pair of a physical charge and an anticharge. Our scheme can be directly implemented in these two relevant experimental platforms of ultracold-atom quantum simulators.

Item Type:Article
Related URLs:
URLURL TypeDescription
Liu, Shang0000-0002-6459-7382
Zheng, Wei0000-0002-6687-6262
Zhang, Pengfei0000-0002-7408-0918
Zhai, Hui0000-0001-8118-6027
Additional Information:We thank Jingyuan Chen and Zhensheng Yuan for helpful discussions. The project is supported by the Beijing Outstanding Young Scholar Program of the National Natural Science Foundation of China (NSFC) through Grant No. 11734010 and the XPLORER Prize.
Group:Walter Burke Institute for Theoretical Physics, Institute for Quantum Information and Matter
Funding AgencyGrant Number
National Natural Science Foundation of China11734010
Issue or Number:4
Record Number:CaltechAUTHORS:20221128-494241100.24
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:118066
Deposited By: Research Services Depository
Deposited On:16 Dec 2022 18:35
Last Modified:16 Dec 2022 21:36

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