Preserving photon qubits in an unknown quantum state with Knill Dynamical Decoupling - Towards an all optical quantum memory

被引：0

作者：

Gupta, Manish K. ^{[1
]}

Navarro, Erik J. ^{[2
]}

Moulder, Todd A. ^{[1
]}

Mueller, Jason D. ^{[1
]}

Balouchi, Ashkan ^{[1
]}

Brown, Katherine L. ^{[1
]}

Lee, Hwang ^{[1
]}

Dowling, Jonathan P. ^{[1
]}

机构：

[1] Louisiana State Univ, Hearne Inst Theoret Phys, Dept Phys & Astron, Baton Rouge, LA 70803 USA

[2] Calif State Univ Chico, Dept Phys, Chico, CA 95929 USA

来源：

ADVANCES IN PHOTONICS OF QUANTUM COMPUTING, MEMORY, AND COMMUNICATION VIII | 2015年 / 9377卷

关键词：

Quantum memory; dynamical decoupling; decoherence; birefringence; single mode fiber; ploarization qubit; waveplates; COMMUNICATION; REPEATERS; SYSTEMS;

D O I：

10.1117/12.2084318

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The implementation of polarization-based quantum communication is limited by signal loss and decoherence caused by the birefringence of a single-mode fiber. We investigate the Knill dynamical decoupling scheme, implemented using half-wave plates, to minimize decoherence and show that a fidelity greater than 99% can be achieved in absence of rotation error and fidelity greater than 96% can be achieved in presence of rotation error. Such a scheme can be used to preserve any quantum state with high fidelity and has potential application for constructing all optical quantum delay line, quantum memory, and quantum repeater.

引用

页数：12

共 29 条

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