2008/11/12 by Ekaterina Moreva, Moreva, E. V., Yu. I. Bogdanov +7
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum Mechanics and Applications #Orbital Angular Momentum in Optics
paper · pdf · doi:10.48550/arxiv.0811.1927
We develop a practical quantum tomography protocol and implement measurements of pure states of ququarts realized with polarization states of photon pairs (biphotons). The method is based on an optimal choice of the measuring scheme's parameters that provides better quality of reconstruction for the fixed set of statistical data. A high accuracy of the state reconstruction (above 0.99) indicates that developed methodology is adequate.