Beyond pure state entanglement for atomic ensembles

TitleBeyond pure state entanglement for atomic ensembles
Publication TypeJournal Article
Year of Publication2012
AuthorsStasińska, J, Paganelli, S, Sanpera, A
JournalNew Journal of Physics
Volume14
Issue3
Pagination033034
ISSN1367-2630
Abstract

We analyze multipartite entanglement between atomic ensembles within quantum matter–light interfaces. In our proposal, a polarized light beam crosses sequentially several polarized atomic ensembles impinging on each of them at a given angle $\alpha$ i . These angles are crucial parameters for shaping the entanglement since they are directly connected to the appropriate combinations of the collective atomic spins that are squeezed. We exploit such a scheme to go beyond the pure state paradigm proposing realistic experimental settings to address multipartite mixed state entanglement in continuous variables.

URLhttp://stacks.iop.org/1367-2630/14/i=3/a=033034
DOI10.1088/1367-2630/14/3/033034
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