Identifying a two-state Hamiltonian in the presence of decoherence

Jared H. Cole, Andrew D. Greentree, Daniel K. L. Oi, Sonia G. Schirmer, Cameron J. Wellard, Lloyd C. L. Hollenberg

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Mapping the system evolution of a two-state system allows the determination of the effective system Hamiltonian directly. We show how this can be achieved even if the system is decohering appreciably over the observation time. A method to include various decoherence models is given and the limits of this technique are explored. This technique is applicable both to the problem of calibrating a control Hamiltonian for quantum computing applications and for precision experiments in two-state quantum systems. The accuracy of the results obtained with this technique are ultimately limited by the validity of the decoherence model used.

Original languageEnglish
Article number062333
Pages (from-to)-
Number of pages8
JournalPhysical Review A
Volume73
Issue number6
DOIs
Publication statusPublished - Jun 2006

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quantum computation
calibrating

Keywords

  • decoherence
  • two-state Hamiltonian
  • quantum computing

Cite this

Cole, J. H., Greentree, A. D., Oi, D. K. L., Schirmer, S. G., Wellard, C. J., & Hollenberg, L. C. L. (2006). Identifying a two-state Hamiltonian in the presence of decoherence. Physical Review A, 73(6), -. [062333]. https://doi.org/10.1103/PhysRevA.73.062333
Cole, Jared H. ; Greentree, Andrew D. ; Oi, Daniel K. L. ; Schirmer, Sonia G. ; Wellard, Cameron J. ; Hollenberg, Lloyd C. L. / Identifying a two-state Hamiltonian in the presence of decoherence. In: Physical Review A. 2006 ; Vol. 73, No. 6. pp. -.
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Cole, JH, Greentree, AD, Oi, DKL, Schirmer, SG, Wellard, CJ & Hollenberg, LCL 2006, 'Identifying a two-state Hamiltonian in the presence of decoherence', Physical Review A, vol. 73, no. 6, 062333, pp. -. https://doi.org/10.1103/PhysRevA.73.062333

Identifying a two-state Hamiltonian in the presence of decoherence. / Cole, Jared H.; Greentree, Andrew D.; Oi, Daniel K. L.; Schirmer, Sonia G.; Wellard, Cameron J.; Hollenberg, Lloyd C. L.

In: Physical Review A, Vol. 73, No. 6, 062333, 06.2006, p. -.

Research output: Contribution to journalArticle

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AU - Cole, Jared H.

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AU - Oi, Daniel K. L.

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Cole JH, Greentree AD, Oi DKL, Schirmer SG, Wellard CJ, Hollenberg LCL. Identifying a two-state Hamiltonian in the presence of decoherence. Physical Review A. 2006 Jun;73(6):-. 062333. https://doi.org/10.1103/PhysRevA.73.062333