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Quantum Foundations

Photonic realization of quantum resetting

arXiv
Authors: Zheng-Da Li, Xu-Fei Yin, Zizhu Wang, Li-Zheng Liu, Rui Zhang, Yu-Zhe Zhang, Xiao Jiang, Jun Zhang, Li Li, Nai-Le Liu, Xiao-Bo Zhu, Feihu Xu, Yu-Ao Chen, Jian-Wei Pan

Year

2019

Paper ID

14526

Status

Preprint

Abstract Read

~2 min

Abstract Words

118

Citations

N/A

Abstract

Contrary to the usual assumption of at least partial control of quantum dynamics, a surprising recent result proved that an arbitrary quantum state can be probabilistically reset to a state in the past by having it interact with probing systems in a consistent, but uncontrolled way. We present a photonic implementation to achieve this resetting process, experimentally verifying that a state can be probabilistically reset to its past with a fidelity of 0.870pm0.012. We further demonstrate the preservation of an entangled state, which still violates a Bell inequality, after half of the entangled pair was reset. The ability to reset uncontrolled quantum states has implications in the foundations of quantum physics and applications in areas of quantum technology.

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  • This paper contributes to the Quantum Foundations research area in the Quantum Articles archive.
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  • Contrary to the usual assumption of at least partial control of quantum dynamics, a surprising recent result proved that an arbitrary quantum state can be probabilistically...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1911.11585 [2] arXiv https://arxiv.org/abs/1911.11585 [3] Publisher https://arxiv.org/abs/1911.11585

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