Diagnosis, prescription and prognosis of a Bell-state filter by quantum process tomography
classification
🪐 quant-ph
keywords
processoperationquantumtomographyasymmetrydecoherenceerrorsfilter
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Using a Hong-Ou-Mandel interferometer, we apply the techniques of quantum process tomography to characterize errors and decoherence in a prototypical two-photon operation, a singlet-state filter. The quantum process tomography results indicate a large asymmetry in the process and also the required operation to correct for this asymmetry. Finally, we quantify errors and decoherence of the filtering operation after this modification.
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