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Synchronous concentration and purification schemes of arbitrary unknown hyperentangled mixed states

Authors :
Du, Kun
Song, Qiu-Cheng
Qiao, Cong-Feng
Publication Year :
2014

Abstract

We present two efficient schemes which can simultaneously accomplish hyperentanglement concentration and purification for two-photon four-qubit systems in an unknown partially hyperentangled mixed states. The first can correct errors in the polarization entanglement and extract maximal hyperentanglement in polarization and spatial mode with additional partial frequency entanglement. The second uses additional maximal frequency entanglement to purify and concentrate hyperentanglement in polarization and spatial mode deterministically. Both of the two schemes are only based on existing optical devices and cross-Kerr nonlinearities.<br />13 pages, 6 figures

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....f8087779d7e26659852feb1b4bbdd614