Back to Search Start Over

Nonlocal entanglement concentration scheme for partially entangled multipartite systems with nonlinear optics

Nonlocal entanglement concentration scheme for partially entangled multipartite systems with nonlinear optics

Authors :
Fu-Guo Deng
Yu-Bo Sheng
Hong-Yu Zhou
Publication Year :
2008
Publisher :
arXiv, 2008.

Abstract

We present a nonlocal entanglement concentration scheme for reconstructing some maximally entangled multipartite states from partially entangled ones by exploiting cross-Kerr nonlinearities to distinguish the parity of two polarization photons. Compared with the entanglement concentration schemes based on two-particle collective unitary evolution, this scheme does not require the parties to know accurately information about the partially entangled states--i.e., their coefficients. Moreover, it does not require the parties to possess sophisticated single-photon detectors, which makes this protocol feasible with present techniques. By iteration of entanglement concentration processes, this scheme has a higher efficiency and yield than those with linear optical elements. All these advantages make this scheme more efficient and more convenient than others in practical applications.<br />Comment: 7 pages, 4 figures. Physical Review A 77, 062325 (2008)

Details

Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....cdcdfb7e65307a7a72ba9e7b630c3d5a
Full Text :
https://doi.org/10.48550/arxiv.0806.0115