Binary projective measurement via linear optics and photon counting

Details Binary projective measurement via linear optics and photon counting Binary projective measurement via linear optics and photon counting

2006-03-09

arxiv.org/abs/quant-ph/0603074v2

Phys. Rev. Lett. 97, 040502 (2006)

Physics

Quantum Physics

8 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.97.040502

We investigate the implementation of binary projective measurements with linear optics. This problem can be viewed as a single-shot discrimination of two orthogonal pure quantum states. We show that any two orthogonal states can be perfectly discriminated using only linear optics, photon counting, coherent ancillary states, and feedforward. The statement holds in the asymptotic limit of large number of these physical resources.

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