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Markov property of Gaussian states of canonical commutation relation algebras

J. Math. Phys. 50, 113517 (2009); doi:10.1063/1.3253974

Published 19 November 2009

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Dénes Petz1,2 and József Pitrik2
1Alfréd Rényi Institute of Mathematics, P.O. Box 127, H-1364 Budapest, Hungary
2Department for Mathematical Analysis, Budapest University of Technology and Economics, H-1521 Budapest XI, Hungary

The Markov property of Gaussian states of canonical commutation relation algebras is studied. The detailed description is given by the representing block matrix. The proof is short and allows infinite dimension. The relation to classical Gaussian Markov triplets is also described. The minimizer of relative entropy with respect to a Gaussian Markov state has the Markov property. The appendix contains formulas for the relative entropy. ©2009 American Institute of Physics
History: Received 30 September 2009; accepted 30 September 2009; published 19 November 2009
Permalink: http://link.aip.org/link/?JMAPAQ/50/113517/1
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KEYWORDS and PACS

Keywords
PACS
  • 05.40.-a
    Fluctuation phenomena, random processes, noise, and Brownian motion
  • 02.10.Yn
    Matrix theory
  • 05.70.Ce
    Thermodynamic functions and equations of state
  • 02.50.Ga
    Markov processes
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0022-2488 (print)   1089-7658 (online)
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REFERENCES (23)

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