Entanglement fidelity of channel adaptive quantum codes 被引量：1

Entanglement fidelity of channel adaptive quantum codes

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摘要 We study the performances of quantum channel adaptive [4,1] code transmitting in a joint amplitude damping and dephasing channel, the [6,2] code transmitting in an amplitude damping channel by combining the encoding, noise process, and decoding as one effective channel. We explicitly obtain the entanglement fidelities. The recovery operators of the [6,2] code are given. The performance is nearly optimal compared with that of the optimal method of semidefinite programming. We study the performances of quantum channel adaptive [4,1] code transmitting in a joint amplitude damping and dephasing channel, the [6,2] code transmitting in an amplitude damping channel by combining the encoding, noise process, and decoding as one effective channel. We explicitly obtain the entanglement fidelities. The recovery operators of the [6,2] code are given. The performance is nearly optimal compared with that of the optimal method of semidefinite programming.

作者詹云陈小余

机构地区 College of Information and Electronic Engineering

出处《Chinese Physics B》 SCIE EI CAS CSCD 2013年第1期104-109,共6页 中国物理B（英文版）

基金 Project supported by the National Natural Science Foundation of China (Grant No. 60972071) the Natural Science Foundation of Zhejiang Province, China(Grant Nos. Y6100421 and LQ12F02012) the Zhejiang Province Science and Technology Project, China (Grant No. 2009C31060)

关键词 adaptive quantum code amplitude damping channel FIDELITY adaptive quantum code, amplitude damping channel, fidelity

分类号 O413 [理学—理论物理] TN911.2 [电子电信—通信与信息系统]

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