Estimation of qubit states in a factorizing basis
Quantum Physics
2007-05-23 v1
Abstract
The optimal estimation of a quantum mechanical 2-state system (qubit) - with N identically prepared qubits available - is obtained by measuring all qubits simultaneously in an entangled basis. We report the experimental estimation of qubits using a succession of N measurements on individual qubits where the measurement basis is changed during the estimation procedure conditioned on the outcome of previous measurements (self-learning estimation). The performance of this adaptive algorithm is compared with other algorithms using measurements in a factorizing basis.
Cite
@article{arxiv.quant-ph/0110068,
title = {Estimation of qubit states in a factorizing basis},
author = {Th. Hannemann and D. Reiss and Ch. Balzer and W. Neuhauser and P. E. Toschek and Ch. Wunderlich},
journal= {arXiv preprint arXiv:quant-ph/0110068},
year = {2007}
}
Comments
4 pages, 2 figures