Entanglement properties of optical coherent states under amplitude damping

被引：0

作者：

Wickert, Ricardo ^{[1
]}

Bernardes, Nadja Kolb

van Loock, Peter

机构：

[1] Univ Erlangen Nurnberg, Max Planck Inst Sci Light, Opt Quantum Informat Theory Grp, D-91058 Erlangen, Germany

来源：

QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC): THE TENTH INTERNATIONAL CONFERENCE | 2011年 / 1363卷

关键词：

Error Correction; Concurrence; Entanglement; Coherent state superpositions;

D O I：

10.1063/1.3630195

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Through concurrence, we characterize the entanglement of optical coherent-state qubits subject to an amplitude damping channel. We investigate the distillation capabilities of known error correcting codes and obtain upper bounds on the entanglement depending on the non-orthogonality of the input states and the channel damping parameter, thus quantitatively analysing these photon-loss codes which are naturally reminiscent of the standard qubit codes against Pauli errors.

引用

页数：4

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