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arXiv · 1801.04681

Observation of Non-Markovianity at Room Temperature by Prolonging Entanglement in Solids

Shijie Peng·Xiangkun Xu·Kebiao Xu·Pu Huang·Pengfei Wang·Xi Kong·Xing Rong·Fazhan Shi·Changkui Duan·Jiangfeng Du
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Abstract

The non-Markovia dynamics of quantum evolution plays an important role in open quantum sytem. However, how to quantify non-Markovian behavior and what can be obtained from non- Markovianity are still open questions, especially in complex solid systems. Here we address the problem of quantifying non-Markovianity with entanglement in a genuine noisy solid state system at room temperature. We observed the non-Markovianity of quantum evolution with entanglement. By prolonging entanglement with dynamical decoupling, we can reveal the non-Markovianity usually concealed in the environment and obtain detailed environment information. This method is expected to be useful in quantum metrology and quantum information science.

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Shijie Peng, Xiangkun Xu, Kebiao Xu, Pu Huang, Pengfei Wang, Xi Kong, Xing Rong, Fazhan Shi, Changkui Duan, Jiangfeng Du. 2018-01-15. Observation of Non-Markovianity at Room Temperature by Prolonging Entanglement in Solids. https://doi.org/10.1016/j.scib.2018.02.017

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