Schrödinger cats and their power for quantum information processing

A. Gilchrist; Kae Nemoto; W. J. Munro; T. C. Ralph; S. Glancy; Samuel L. Braunstein; G. J. Milburn

doi:10.1088/1464-4266/6/8/032

Schrödinger cats and their power for quantum information processing

A. Gilchrist^*, Kae Nemoto, W. J. Munro, T. C. Ralph, S. Glancy, Samuel L. Braunstein, G. J. Milburn

^*Corresponding author for this work

Research output: Contribution to journal › Conference paper › peer-review

164 Citations (Scopus)

Abstract

We outline a toolbox comprised of passive optical elements, single photon detection and superpositions of coherent states (Schrödinger cat states). Such a toolbox is a powerful collection of primitives for quantum information processing tasks. We illustrate its use by outlining a proposal for universal quantum computation. We utilize this toolbox for quantum metrology applications, for instance weak force measurements and precise phase estimation. We show in both these cases that a sensitivity at the Heisenberg limit is achievable.

Original language	English
Pages (from-to)	S828-S833
Number of pages	6
Journal	Journal of Optics B: Quantum and Semiclassical Optics
Volume	6
Issue number	8
DOIs	https://doi.org/10.1088/1464-4266/6/8/032
Publication status	Published - Aug 2004
Externally published	Yes
Event	1st International Symposium on Fluctuations and Noise - SANTA FE, NM Duration: 1 Jun 2003 → 4 Jun 2003

Keywords

High precision measurements
Quantum information processing
Quantum metrology
Quantum toolbox
Schrödinger cats

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Cite this

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abstract = "We outline a toolbox comprised of passive optical elements, single photon detection and superpositions of coherent states (Schr{\"o}dinger cat states). Such a toolbox is a powerful collection of primitives for quantum information processing tasks. We illustrate its use by outlining a proposal for universal quantum computation. We utilize this toolbox for quantum metrology applications, for instance weak force measurements and precise phase estimation. We show in both these cases that a sensitivity at the Heisenberg limit is achievable.",

keywords = "High precision measurements, Quantum information processing, Quantum metrology, Quantum toolbox, Schr{\"o}dinger cats",

author = "A. Gilchrist and Kae Nemoto and Munro, {W. J.} and Ralph, {T. C.} and S. Glancy and Braunstein, {Samuel L.} and Milburn, {G. J.}",

year = "2004",

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doi = "10.1088/1464-4266/6/8/032",

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T1 - Schrödinger cats and their power for quantum information processing

AU - Gilchrist, A.

AU - Nemoto, Kae

AU - Munro, W. J.

AU - Ralph, T. C.

AU - Glancy, S.

AU - Braunstein, Samuel L.

AU - Milburn, G. J.

PY - 2004/8

Y1 - 2004/8

N2 - We outline a toolbox comprised of passive optical elements, single photon detection and superpositions of coherent states (Schrödinger cat states). Such a toolbox is a powerful collection of primitives for quantum information processing tasks. We illustrate its use by outlining a proposal for universal quantum computation. We utilize this toolbox for quantum metrology applications, for instance weak force measurements and precise phase estimation. We show in both these cases that a sensitivity at the Heisenberg limit is achievable.

AB - We outline a toolbox comprised of passive optical elements, single photon detection and superpositions of coherent states (Schrödinger cat states). Such a toolbox is a powerful collection of primitives for quantum information processing tasks. We illustrate its use by outlining a proposal for universal quantum computation. We utilize this toolbox for quantum metrology applications, for instance weak force measurements and precise phase estimation. We show in both these cases that a sensitivity at the Heisenberg limit is achievable.

KW - High precision measurements

KW - Quantum information processing

KW - Quantum metrology

KW - Quantum toolbox

KW - Schrödinger cats

UR - http://www.scopus.com/inward/record.url?scp=4344607649&partnerID=8YFLogxK

U2 - 10.1088/1464-4266/6/8/032

DO - 10.1088/1464-4266/6/8/032

M3 - Conference paper

AN - SCOPUS:4344607649

SN - 1464-4266

VL - 6

SP - S828-S833

JO - Journal of Optics B: Quantum and Semiclassical Optics

JF - Journal of Optics B: Quantum and Semiclassical Optics

IS - 8

T2 - 1st International Symposium on Fluctuations and Noise

Y2 - 1 June 2003 through 4 June 2003

ER -

Schrödinger cats and their power for quantum information processing

Abstract

Keywords

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