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Spatio-Temporal Steering for Testing Nonclassical Correlations in Quantum Networks

We introduce the concept of spatio-temporal steering (STS), which reduces, in special cases, to Einstein-Podolsky-Rosen steering and the recently-introduced temporal steering. We describe two measures of this effect referred to as the STS weight and robustness. We suggest that these STS measures ena...

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Detalles Bibliográficos
Autores principales: Chen, Shin-Liang, Lambert, Neill, Li, Che-Ming, Chen, Guang-Yin, Chen, Yueh-Nan, Miranowicz, Adam, Nori, Franco
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5473883/
https://www.ncbi.nlm.nih.gov/pubmed/28623284
http://dx.doi.org/10.1038/s41598-017-03789-4
Descripción
Sumario:We introduce the concept of spatio-temporal steering (STS), which reduces, in special cases, to Einstein-Podolsky-Rosen steering and the recently-introduced temporal steering. We describe two measures of this effect referred to as the STS weight and robustness. We suggest that these STS measures enable a new way to assess nonclassical correlations in an open quantum network, such as quantum transport through nano-structures or excitation transfer in a complex biological system. As one of our examples, we apply STS to check nonclassical correlations among sites in a photosynthetic pigment-protein complex in the Fenna-Matthews-Olson model.