Linear-Optical Implementation of Perfect Discrimination between Single-bit Unitary Operations

Details Linear-Optical Implementation of Perfect Discrimination between Single-bit Unitary Operations Linear-Optical Implementation of Perfect Discrimination between Single-bit Unitary Operations

2008-01-23

arxiv.org/abs/0801.3493v2

J. Phys. B: At. Mol. Opt. Phys. 41 195501 (2008)

Physics

Quantum Physics

10 pages, 3 figures

Scientific paper

10.1088/0953-4075/41/19/195501

Discrimination of unitary operations is a fundamental quantum information
processing task. Assisted with linear optical elements, we experimentally
demonstrate perfect discrimination between single-bit unitary operations using
two methods--sequential scheme and parallel scheme. The complexity and resource
consumed in these two schemes are analyzed and compared.

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