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A closed-system approach to quantum retrodiction in open systems

Scroggie, A.J. and Jeffers, J. (2008) A closed-system approach to quantum retrodiction in open systems. International Journal of Theoretical Physics, 47 (7). pp. 1809-1816. ISSN 0020-7748

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Abstract

Ban (Int. J. Theor. Phys. 46:184, 2007) has shown how retrodictive open systems evolution may be treated as unitary using non-equilibrium thermo field dynamics. Here we describe the application of another technique with the same purpose, Fano diagonalisation.