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Quantum Information Processing

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01-08-2023

Nonequilibrium effects on quantum temporal steering

Authors: W. W. Cheng, B. Li

Published in: Quantum Information Processing | Issue 8/2023

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Abstract

We investigate the quantum temporal steering (TS), measured by temporal steering robustness \(R_\mathrm{{TS}}\), of a two-level system coupling to a nonequilibrium environment, for the weak and the strong coupling regime. The impact of various environmental parameters on TS behavior is discussed in detail. In order to gain a deeper understanding of TS, we also analyze the non-Markovianity of the system. Our numerical results reveal that a nonequilibrium environment can enhance the quantum temporal steering of the two-level system, regardless of whether the system is experiencing Markovian or non-Markovian dynamics. Furthermore, a strong memory environment can significantly enhance TS as well. These findings suggest that manipulating the temporal steering of a quantum system can be achieved efficiently and effectively in a nonequilibrium environment.

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Title: Nonequilibrium effects on quantum temporal steering
Authors: W. W. Cheng
B. Li
Publication date: 01-08-2023
Publisher: Springer US
Published in: Quantum Information Processing / Issue 8/2023
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI: https://doi.org/10.1007/s11128-023-04053-7

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