Emergent quantum correlations and collective behavior in noninteracting quantum systems subject to stochastic resetting

Magoni, Matteo; Carollo, Federico; Perfetto, Gabriele; Lesanovsky, Igor

Abstract

We investigate the dynamics of a noninteracting spin system, undergoing coherent Rabi oscillations, in the presence of stochastic resetting. We show that resetting generally induces long-range quantum and classical correlations both in the emergent dissipative dynamics and in the nonequilibrium stationary state. Moreover, for the case of conditional reset protocols - where the system is reinitialized to a state dependent on the outcome of a preceding measurement - we show that in the thermodynamic limit, the spin system can feature collective behavior which results in a phenomenology reminiscent of that occurring in nonequilibrium phase transitions. The discussed reset protocols can be implemented on quantum simulators and quantum devices that permit fast measurement and readout of macroscopic observables, such as the magnetization. Our approach does not require the control of coherent interactions and may therefore highlight a route towards a simple and robust creation of quantum correlations and collective nonequilibrium states, with potential applications in quantum enhanced metrology and sensing.

Citation

Magoni, M., Carollo, F., Perfetto, G., & Lesanovsky, I. (2022). Emergent quantum correlations and collective behavior in noninteracting quantum systems subject to stochastic resetting. Physical Review A, 106(5), Article 052210. https://doi.org/10.1103/physreva.106.052210

• Journal Article Type: Article
• Acceptance Date: Oct 31, 2022
• Online Publication Date: Nov 16, 2022
• Publication Date: 2022-11
• Deposit Date: Nov 1, 2022
• Publicly Available Date: Nov 16, 2022
• Journal: Physical Review A
• Print ISSN: 2469-9926
• Electronic ISSN: 2469-9934
• Peer Reviewed: Peer Reviewed
• Volume: 106
• Issue: 5
• Article Number: 052210
• DOI: https://doi.org/10.1103/physreva.106.052210
• Public URL: https://nottingham-repository.worktribe.com/output/13171486
• Publisher URL: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.106.052210