Interferometric methods to measure orbital and spin, or the total angular momentum of a single photon

Leach, J., Courtial, J., Skeldon, K., Barnett, S. M., Franke-Arnold, S. and Padgett, M. J. (2004) Interferometric methods to measure orbital and spin, or the total angular momentum of a single photon. Physical Review Letters, 92(1), 013601. (doi:10.1103/PhysRevLett.92.013601)

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Publisher's URL: http://dx.doi.org/10.1103/PhysRevLett.92.013601

Abstract

We propose interferometric methods capable of measuring either the total angular momentum, or simultaneously measuring the spin and orbital angular momentum of single photons. This development enables the measurement of any angular momentum eigenstate of a single photon. The work allows the investigation of single-photon two-qubit entangled states and has implications for high density information transfer.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Courtial, Dr Johannes and Padgett, Professor Miles and Barnett, Professor Stephen and Franke-Arnold, Dr Sonja and Skeldon, Dr Kenneth and Leach, Mr Jonathan
Authors: Leach, J., Courtial, J., Skeldon, K., Barnett, S. M., Franke-Arnold, S., and Padgett, M. J.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review Letters
Publisher:American Physical Society
ISSN:0031-9007
ISSN (Online):1079-7114
Published Online:05 January 2004

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
331501Multi-dimensional quantum entanglement and high density information transferMiles PadgettEngineering & Physical Sciences Research Council (EPSRC)GR/S03904/01Physics and Astronomy