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- Title
Protecting sing-photon multi-mode W state from photon loss.
- Authors
Sheng, Yu-Bo; Ou-Yang, Yang; Zhou, Lan; Wang, Lei
- Abstract
Single-photon entanglement is of major importance in current quantum communications. However, it is sensitive to photon loss. In this paper, we discuss the protection of single-photon multi-mode W state with noiseless linear amplification. It is shown that the amplification factor is only decided with the transmission coefficient of the variable fiber beam splitters, and it does not change with the number of the spatial mode. This protocol may be useful in current quantum information processing.
- Subjects
QUANTUM entanglement; PHOTONS; MULTIMODE waveguides; QUANTUM communication; COEFFICIENTS (Statistics)
- Publication
Quantum Information Processing, 2014, Vol 13, Issue 7, p1595
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-014-0754-6