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

M. W. Mitchell; C. W. Ellenor; S. Schneider; A. M. Steinberg

doi:10.1103/PhysRevLett.91.120402

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

Quantum Physics 2009-11-10 v1

Authors: M. W. Mitchell , C. W. Ellenor , S. Schneider , A. M. Steinberg

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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

quantum process tomography Bell-state filter Hong-Ou-Mandel interferometer singlet-state filter decoherence error characterization two-photon operation

Cite

@article{arxiv.quant-ph/0305001,
  title  = {Diagnosis, prescription and prognosis of a Bell-state filter by quantum process tomography},
  author = {M. W. Mitchell and C. W. Ellenor and S. Schneider and A. M. Steinberg},
  journal= {arXiv preprint arXiv:quant-ph/0305001},
  year   = {2009}
}

Comments

4 pages, 4 figures

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