Photon-number correlations in waveguide lattices with second order coupling

We introduce second-order coupling into the transport and coupling of photons in waveguide lattices. Second-order coupling, as well as high-order couplings, can be significant in long, compact or some special lattices, and is important for large-scale quantum circuits. Photon-number correlations wit...

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Bibliographic Details
Published in:Journal of Optics 2014-12, Vol.16 (12), p.125007-6
Main Authors: Qi, F, Feng, Z G, Wang, Y F, Xu, P, Zhu, S N, Zheng, W H
Format: Article
Language:English
Subjects:
Circuits
Correlation
Couplings
Joining
Lattices
Mathematical analysis
Photons
quantum walks
second order coupling
Transport
waveguide lattices
Waveguides
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Summary:We introduce second-order coupling into the transport and coupling of photons in waveguide lattices. Second-order coupling, as well as high-order couplings, can be significant in long, compact or some special lattices, and is important for large-scale quantum circuits. Photon-number correlations with various amounts of second-order couplings are calculated. Some distinctive and interesting effects arise, and these are helpful for our comprehension of quantum walks in waveguide lattices.
ISSN:2040-8978
2040-8986
1464-4258
DOI:10.1088/2040-8978/16/12/125007