2008/08/12 by F. A. Torres-Ruiz, J. Aguirre, Torres-Ruiz, F. A. +16
Computer Science · Physics and Astronomy · #Laser-Matter Interactions and Applications #Quantum Information and Cryptography #Quantum Mechanics and Applications #quant-ph
paper · pdf · doi:10.48550/arxiv.0808.1730
Accepted for publication in Physical Review A
arxiv created 2009/04/27 · arxiv updated 2009/12/01
In this work we propose a probabilistic method which allows an unambiguous modification of two non-orthogonal quantum states. We experimentally implement this protocol by using two-photon polarization states generated in the process of spontaneous parametric down conversion. In the experiment, for codifying initial quantum states, we consider single photon states and heralded detection. We show that the application of this protocol to entangled states, it allows a fine control of the amount of entanglement of the initial state.