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Quantum Information Processing

Control of single-photon routing in a T-shaped waveguide by another atom

  • 01-04-2018
Published in:
Authors
Jin-Song Huang
Jing-Wen Wang
Yan Wang
Yan-Ling Li
You-Wen Huang
Published in
Quantum Information Processing | Issue 4/2018

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Abstract

Quantum routers with a high routing rate of much more than 0.5 are of great importance for quantum networks. We provide a scheme to perform bidirectional high routing-rate transfer in a T-shaped coupled-resonator waveguide (CRW), which extends a recent unidirectional scheme proposed by Lu et al. (Opt Express 23:22955, 2015). By locating an extra two-level atom in the infinite CRW channel of the T-shaped CRW with a three-level system, an effective potential is generated. Our numerical results show that high routing capability from the infinite CRW channel to the semi-infinite channel can be achieved, and routing capability from the semi-infinite CRW channel to the infinite channel can also be significantly enhanced, with the help of the effective potential. Therefore, the proposed double-atom configuration could be utilized as a bidirectional quantum routing controller to implement high transfer rate routing of single photons.

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previous article Theoretical investigations of quantum correlations in NMR multiple-pulse spin-locking experiments
next article Quantum iSWAP gate in optical cavities with a cyclic three-level system
Title
Control of single-photon routing in a T-shaped waveguide by another atom
Authors
Jin-Song Huang
Jing-Wen Wang
Yan Wang
Yan-Ling Li
You-Wen Huang
Publication date
01-04-2018
Publisher
Springer US
Published in
Quantum Information Processing / Issue 4/2018
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-018-1850-9
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