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 journalConference articlepeer-review


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 languageEnglish
Article number58930Y
Pages (from-to)1-12
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - Dec 2005
Externally publishedYes
EventQuantum Communications and Quantum Imaging III - San Diego, CA, United States
Duration: 2 Aug 20054 Aug 2005


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