Diagnosis, prescription and prognosis of a Bell-state filter by quantum process tomography

Preprint

30 April 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/0305001

Abstract

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.

Keywords

ASYMMETRY
BELL STATE
DECOHERENCE
INTERFEROMETER
MODIFICATION
PROCESS TOMOGRAPHY
PROGNOSIS
QUANTUM PROCESS
STATE FILTER
TOMOGRAPHY

All Related Versions

Version 1, 2003-04-30, ArXiv
Published version: Physical Review Letters, 91 (12), 120402.

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