12 September 2005 Using entanglement in photonic qubit measurements
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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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
G. J. Pryde, J. L. O'Brien, A. G. White, T. C. Ralph, S. D. Bartlett, and H. M. Wiseman "Using entanglement in photonic qubit measurements", Proc. SPIE 5893, Quantum Communications and Quantum Imaging III, 58930Y (12 September 2005); doi: 10.1117/12.616166; https://doi.org/10.1117/12.616166
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