Mutually unbiased measurements for high-dimensional time-bin–based photonic states

Brougham, T. and Barnett, S.M. (2013) Mutually unbiased measurements for high-dimensional time-bin–based photonic states. EPL (Europhysics Letters), 104(3), Art. 30003. (doi:10.1209/0295-5075/104/30003)

[img]
Preview
Text
89198.pdf - Accepted Version

390kB

Abstract

The task of measuring in two mutually unbiased bases is central to many quantum information protocols, as well as being of fundamental interest. Increasingly, there is an experimental focus on generating and controlling high-dimensional photonic states. One approach is to use the arrival time of a photon, which can be split into discrete time bins. An important problem associated with such states is the difficulty in experimentally realizing a measurement that is mutually unbiased with respect to the time of arrival. We propose a simple and compact scheme to measure in both the time-of-arrival basis and a basis that is approximately mutually unbiased with respect to the arrival time.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Barnett, Professor Stephen and Brougham, Dr Thomas
Authors: Brougham, T., and Barnett, S.M.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:EPL (Europhysics Letters)
Publisher:Institute of Physics
ISSN:0295-5075
ISSN (Online):1286-4854
Copyright Holders:Copyright © 2013 IOP Publishing Ltd.
First Published:First published in EPL (Europhysics Letters) 104(3):30003
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

University Staff: Request a correction | Enlighten Editors: Update this record