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arxiv: 0811.2360 · v3 · submitted 2008-11-14 · 🪐 quant-ph

Adaptive estimation of qubits by symmetry measurements

classification 🪐 quant-ph
keywords estimationadaptivemeasurementsstatesymmetryanalyzecomparesconcept
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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.

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