Adaptive estimation of qubits by symmetry measurements
arXiv:0811.2360 · doi:10.1103/PhysRevA.78.064303
Abstract
We analyze quantum state estimation for finite samples based on symmetry information. The used measurement concept compares an unknown qubit to a reference state. We describe explicitly an adaptive strategy, that enhances the estimation fidelity of these measurements.
5 pages, 3 figures; Version 3 with minor corrections
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