Basis-independent tomography and non-separability witnesses of pure complex vectorial light fields by Stokes projections

Selyem, A., Rosales-Guzmán, C., Croke, S. , Forbes, A. and Franke-Arnold, S. (2019) Basis-independent tomography and non-separability witnesses of pure complex vectorial light fields by Stokes projections. Physical Review A: Atomic, Molecular and Optical Physics, 100, 063842. (doi: 10.1103/PhysRevA.100.063842)

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Abstract

Complex vectorial light fields, non-separable in their polarization and spatial degree of freedom, are of relevance in a wide variety of research areas encompassing microscopy, metrology, communication and topological studies. Controversially, they have been suggested as analogues to quantum entanglement, raising fundamental questions on the relation between non-separability in classical systems, and entanglement in quantum systems. We perform basis-independent tomography of arbitrary pure vectorial light fields using spatially resolved Stokes projections. Moreover, we propose and demonstrate that concurrence, as a non-separability witness for any pure vectorial light field, can be extracted from global Stokes projections, without assessing the spatial degree of freedom.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Franke-Arnold, Professor Sonja and Croke, Dr Sarah and Selyem, Adam
Authors: Selyem, A., Rosales-Guzmán, C., Croke, S., Forbes, A., and Franke-Arnold, S.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review A: Atomic, Molecular and Optical Physics
Publisher:American Physical Society
ISSN:1050-2947
ISSN (Online):1094-1622
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
190906EPSRC 2015 DTPMary Beth KneafseyEngineering and Physical Sciences Research Council (EPSRC)EP/M508056/1Research and Innovation Services