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Christof J. Happ

Publications and source records attributed to Christof J. Happ.

2 recordsLinked to original sources

Simple Adaption of Measurements for Qudit Estimation

We present a strategy for estimation of d-level quantum states and for the simple adaption of corresponding measurements. The adaption method is inspired by mutually unbiased measurements, but it is also applicable in cases for which no complete set of mutually unbiased bases is known. We present results of Monte Carlo simulations, that demonstrate the fidelity gain of the adaptive strategy compared to a non-adaptive estimation.

quant-ph

Adaptive estimation of qubits by symmetry measurements

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.

quant-ph