Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Entanglement of arbitrary superpositions of modes within two-dimensional orbital angular momentum state spaces

Jack, B. and Yao, A. M. and Leach, J. and Romero, J. and Franke-Arnold, S. and Ireland, D. G. and Barnett, S. M. and Padgett, M. J. (2010) Entanglement of arbitrary superpositions of modes within two-dimensional orbital angular momentum state spaces. Physical Review A, 81 (4). 043844. ISSN 1050-2947

[img]
Preview
PDF
EntangArbSup.pdf - Draft Version

Download (528kB) | Preview

Abstract

We use spatial light modulators (SLMs) to measure correlations between arbitrary superpositions of orbital angular momentum (OAM) states generated by spontaneous parametric down-conversion. Our technique allows us to fully access a two-dimensional OAM subspace described by a Bloch sphere, within the higher-dimensional OAM Hilbert space. We quantify the entanglement through violations of a Bell-type inequality for pairs of modal superpositions that lie on equatorial, polar, and arbitrary great circles of the Bloch sphere. Our work shows that SLMs can be used to measure arbitrary spatial states with a fidelity sufficient for appropriate quantum information processing systems.

Item type: Article
ID code: 26770
Keywords: hidden-variable thesis, bell-inequality, quantum entanglement, local theories, light, photons, violation, theorem, Physics, Atomic and Molecular Physics, and Optics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Depositing user: Miss Leonie Airley
Date Deposited: 17 Aug 2010 10:18
Last modified: 26 Mar 2015 22:01
URI: http://strathprints.strath.ac.uk/id/eprint/26770

Actions (login required)

View Item View Item