Using entanglement in photonic qubit measurements

G. J. Pryde; J. L. O'Brien; A. G. White; T. C. Ralph; S. D. Bartlett; H. M. Wiseman

doi:10.1117/12.616166

Using entanglement in photonic qubit measurements

G. J. Pryde, J. L. O'Brien, A. G. White, T. C. Ralph, S. D. Bartlett, H. M. Wiseman

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

Abstract

Two-qubit entangling gates allow the realization of new types of generalized quantum measurement, We discuss, and use photonic systems to demonstrate, two instances of this: two-qubit entangling measurements realizing superior discrimination of locally prepared two-qubit quantum states relative to what is achievable with local measurements' and classical communication; and nondestructive weak measurements with postselection, leading to quantum weak values.

Original language	English
Article number	58930Y
Pages (from-to)	1-12
Number of pages	12
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5893
DOIs	https://doi.org/10.1117/12.616166
Publication status	Published - Dec 2005
Externally published	Yes
Event	Quantum Communications and Quantum Imaging III - San Diego, CA, United States Duration: 2 Aug 2005 → 4 Aug 2005

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abstract = "Two-qubit entangling gates allow the realization of new types of generalized quantum measurement, We discuss, and use photonic systems to demonstrate, two instances of this: two-qubit entangling measurements realizing superior discrimination of locally prepared two-qubit quantum states relative to what is achievable with local measurements' and classical communication; and nondestructive weak measurements with postselection, leading to quantum weak values.",

keywords = "Quantum information, Quantum measurement, Quantum nonlocality, Weak values",

author = "Pryde, {G. J.} and O'Brien, {J. L.} and White, {A. G.} and Ralph, {T. C.} and Bartlett, {S. D.} and Wiseman, {H. M.}",

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language = "English",

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T1 - Using entanglement in photonic qubit measurements

AU - Pryde, G. J.

AU - O'Brien, J. L.

AU - White, A. G.

AU - Ralph, T. C.

AU - Bartlett, S. D.

AU - Wiseman, H. M.

PY - 2005/12

Y1 - 2005/12

N2 - Two-qubit entangling gates allow the realization of new types of generalized quantum measurement, We discuss, and use photonic systems to demonstrate, two instances of this: two-qubit entangling measurements realizing superior discrimination of locally prepared two-qubit quantum states relative to what is achievable with local measurements' and classical communication; and nondestructive weak measurements with postselection, leading to quantum weak values.

AB - Two-qubit entangling gates allow the realization of new types of generalized quantum measurement, We discuss, and use photonic systems to demonstrate, two instances of this: two-qubit entangling measurements realizing superior discrimination of locally prepared two-qubit quantum states relative to what is achievable with local measurements' and classical communication; and nondestructive weak measurements with postselection, leading to quantum weak values.

KW - Quantum information

KW - Quantum measurement

KW - Quantum nonlocality

KW - Weak values

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U2 - 10.1117/12.616166

DO - 10.1117/12.616166

M3 - Conference article

AN - SCOPUS:29344452172

SN - 0277-786X

VL - 5893

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EP - 12

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 58930Y

T2 - Quantum Communications and Quantum Imaging III

Y2 - 2 August 2005 through 4 August 2005

ER -

Using entanglement in photonic qubit measurements

Abstract

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