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Quantum Retrodiction

  • J. Jeffers
  • S. M. Barnett
  • D. Pegg
  • O. Jedrkiewicz
  • R. Loudon

Conclusion

In this paper we have described the retrodictive quantum formalism. We have defined the operator which describes preparation devices, and the retrodictive state, which is simply the normalised measurement POM element. These enable simple evaluation of preparation probabilities given the results of some later measurement event. We have shown how to apply the formalism to both closed and open quantum systems.

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References

  1. [1]
    D.T. Pegg and S. M. Barnett, 1999, Quantum Semiclass. Opt. 1, 442.CrossRefGoogle Scholar
  2. [2]
    S.M. Barnett et al, J. Mod. Opt., 2000, 47, 1779.ADSzbMATHMathSciNetGoogle Scholar
  3. [3]
    S.M. Barnett et al., 2000, Phys. Rev. A 62, 022313.CrossRefADSGoogle Scholar
  4. [4]
    S.M. Barnett et al., 2000, J. Phys. B: At. Mol. Opt. Phys. 33, 3047.ADSCrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • J. Jeffers
    • 1
  • S. M. Barnett
    • 1
  • D. Pegg
    • 2
  • O. Jedrkiewicz
    • 3
  • R. Loudon
    • 3
  1. 1.Dept. of Physics & Applied PhysicsUniversity of StrathclydeGlasgowUK
  2. 2.Faculty of ScienceGriffith UniversityBrisbaneAustralia
  3. 3.Dept. of Electronic Systems EngineeringUniversity of EssexColchesterUK

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