Linear optics quantum process tomography

J. B. Altepeter, E. R. Jeffreyl, M. Medic, Prem Kumar

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Linear optics quantum computation (LOQC) eliminates the need for a strongly nonlinear photon-photon interaction to create entangling gate operation, instead replacing it with the fundamental nonlinearity of quantum measurement. The LOQC gates rely on nondeterministic performance conditioned on detection or nondetection of events in ancillary modes, and are normally characterized in the multiple photon basis in which they are designed to operate. By assuming that the underlying physical structure of an LOQC gate is linear, and therefore describable entirely by it's action on single-photon input states, it is possible to exponentially reduce the number of parameters necessary to characterize that gate.

Original languageEnglish (US)
Title of host publicationQuantum Communication, Measurement and Computing (QCMC) - The Ninth International Conference
Number of pages4
StatePublished - Nov 27 2009
Event9th International Conference on Quantum Communication, Measurement And Computing, QCMC - Calgary, AB, Canada
Duration: Aug 19 2009Aug 24 2009

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Other9th International Conference on Quantum Communication, Measurement And Computing, QCMC
CityCalgary, AB


  • LOQC
  • Process
  • Tomography

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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