Entanglement-free, heisenberg-limited phase measurement

B. L. Higgins, H. M. Wiseman, G. J. Pryde, D. W. Berry, S. D. Bartlett

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionResearchpeer-review

Abstract

We demonstrate the first experimental Heisenberg-limited scaling of the phase variance in optical phase measurements. Our algorithm replaces complicated entangled states - widely thought to be essential for Heisenberg scaling - with single photons, multiple passes through a phase shift, and adaptive measurement. We show that although a single-photon version of Kitaev's phase estimation algorithm has standard-quantum-limited variance, our generalized technique is within a small constant factor of the ultimate quantum limit.

LanguageEnglish
Title of host publicationProceedings of Quantum-Atom Optics Downunder 2007
Place of PublicationWashington, DC
PublisherOptical Society of America (OSA)
Pages1-1
Number of pages1
Publication statusPublished - 2007
EventQuantum-Atom Optics Downunder 2007 - Wollongong, Australia
Duration: 3 Dec 20073 Dec 2007

Publication series

NameOptics InfoBase Conference Paper Series
PublisherOptical Society of America (OSA)
ISSN (Print)2162-2701

Conference

ConferenceQuantum-Atom Optics Downunder 2007
Abbreviated titleQAO 2007
CountryAustralia
CityWollongong
Period3/12/073/12/07

Fingerprint

Phase measurement
Photons
scaling
photons
Phase shift
phase shift

Cite this

Higgins, B. L., Wiseman, H. M., Pryde, G. J., Berry, D. W., & Bartlett, S. D. (2007). Entanglement-free, heisenberg-limited phase measurement. In Proceedings of Quantum-Atom Optics Downunder 2007 (pp. 1-1). (Optics InfoBase Conference Paper Series). Washington, DC: Optical Society of America (OSA).
Higgins, B. L. ; Wiseman, H. M. ; Pryde, G. J. ; Berry, D. W. ; Bartlett, S. D. / Entanglement-free, heisenberg-limited phase measurement. Proceedings of Quantum-Atom Optics Downunder 2007. Washington, DC : Optical Society of America (OSA), 2007. pp. 1-1 (Optics InfoBase Conference Paper Series).
@inproceedings{c77cb69221eb4467bdeeea18148acf62,
title = "Entanglement-free, heisenberg-limited phase measurement",
abstract = "We demonstrate the first experimental Heisenberg-limited scaling of the phase variance in optical phase measurements. Our algorithm replaces complicated entangled states - widely thought to be essential for Heisenberg scaling - with single photons, multiple passes through a phase shift, and adaptive measurement. We show that although a single-photon version of Kitaev's phase estimation algorithm has standard-quantum-limited variance, our generalized technique is within a small constant factor of the ultimate quantum limit.",
author = "Higgins, {B. L.} and Wiseman, {H. M.} and Pryde, {G. J.} and Berry, {D. W.} and Bartlett, {S. D.}",
year = "2007",
language = "English",
series = "Optics InfoBase Conference Paper Series",
publisher = "Optical Society of America (OSA)",
pages = "1--1",
booktitle = "Proceedings of Quantum-Atom Optics Downunder 2007",
address = "United States",

}

Higgins, BL, Wiseman, HM, Pryde, GJ, Berry, DW & Bartlett, SD 2007, Entanglement-free, heisenberg-limited phase measurement. in Proceedings of Quantum-Atom Optics Downunder 2007. Optics InfoBase Conference Paper Series, Optical Society of America (OSA), Washington, DC, pp. 1-1, Quantum-Atom Optics Downunder 2007, Wollongong, Australia, 3/12/07.

Entanglement-free, heisenberg-limited phase measurement. / Higgins, B. L.; Wiseman, H. M.; Pryde, G. J.; Berry, D. W.; Bartlett, S. D.

Proceedings of Quantum-Atom Optics Downunder 2007. Washington, DC : Optical Society of America (OSA), 2007. p. 1-1 (Optics InfoBase Conference Paper Series).

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionResearchpeer-review

TY - GEN

T1 - Entanglement-free, heisenberg-limited phase measurement

AU - Higgins, B. L.

AU - Wiseman, H. M.

AU - Pryde, G. J.

AU - Berry, D. W.

AU - Bartlett, S. D.

PY - 2007

Y1 - 2007

N2 - We demonstrate the first experimental Heisenberg-limited scaling of the phase variance in optical phase measurements. Our algorithm replaces complicated entangled states - widely thought to be essential for Heisenberg scaling - with single photons, multiple passes through a phase shift, and adaptive measurement. We show that although a single-photon version of Kitaev's phase estimation algorithm has standard-quantum-limited variance, our generalized technique is within a small constant factor of the ultimate quantum limit.

AB - We demonstrate the first experimental Heisenberg-limited scaling of the phase variance in optical phase measurements. Our algorithm replaces complicated entangled states - widely thought to be essential for Heisenberg scaling - with single photons, multiple passes through a phase shift, and adaptive measurement. We show that although a single-photon version of Kitaev's phase estimation algorithm has standard-quantum-limited variance, our generalized technique is within a small constant factor of the ultimate quantum limit.

UR - http://www.scopus.com/inward/record.url?scp=84899023784&partnerID=8YFLogxK

M3 - Conference proceeding contribution

T3 - Optics InfoBase Conference Paper Series

SP - 1

EP - 1

BT - Proceedings of Quantum-Atom Optics Downunder 2007

PB - Optical Society of America (OSA)

CY - Washington, DC

ER -

Higgins BL, Wiseman HM, Pryde GJ, Berry DW, Bartlett SD. Entanglement-free, heisenberg-limited phase measurement. In Proceedings of Quantum-Atom Optics Downunder 2007. Washington, DC: Optical Society of America (OSA). 2007. p. 1-1. (Optics InfoBase Conference Paper Series).