实验刻画噪声信道中的纠缠动力学。

Experimental characterization of entanglement dynamics in noisy channels.

机构信息

Key Laboratory of Quantum Information, University of Science and Technology of China, CAS, Hefei, 230026, People's Republic of China.

出版信息

Phys Rev Lett. 2009 Dec 11;103(24):240502. doi: 10.1103/PhysRevLett.103.240502. Epub 2009 Dec 9.

DOI:10.1103/PhysRevLett.103.240502

PMID:20366189

Abstract

We experimentally characterize the bipartite entanglement under one-sided open system dynamics and verify the recently formulated entanglement factorization law [Nature Phys. 4, 99 (2008)]. The one-sided open system dynamics is realized by implementing a phase damping and an amplitude decay channel, respectively, acting on one of the qubits, by an all-optical setup. Our results greatly simplify the characterization of entanglement dynamics and will play an important role in the construction of complex quantum networks.

摘要

我们通过实验对单边开放系统动力学下的双体纠缠进行了特征化，并验证了最近提出的纠缠分解定律[Nature Phys. 4, 99 (2008)]。单边开放系统动力学是通过全光学装置分别在一个qubit 上实现相位阻尼和振幅衰减通道来实现的。我们的结果大大简化了纠缠动力学的特征化，并且在复杂量子网络的构建中将会发挥重要作用。