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|Title:||Bures fidelity for diagonalizable quadratic Hamiltonians in multi-mode systems||Authors:||Wang, X.-B.
|Issue Date:||14-Jul-2000||Citation:||Wang, X.-B., Kwek, L.C., Oh, C.H. (2000-07-14). Bures fidelity for diagonalizable quadratic Hamiltonians in multi-mode systems. Journal of Physics A: Mathematical and General 33 (27) : 4925-4934. ScholarBank@NUS Repository. https://doi.org/10.1088/0305-4470/33/27/310||Abstract:||Fidelity, as a measure of the distinguishability of states, is an important concept in quantum mechanics, quantum optics and quantum information theory. Recently, the explicit expressions of fidelity for single-mode squeezed states have been given. However, in experimental studies, especially in non-degenerate parametric down-conversion, two photons are generated and one studies two-or more-mode systems. In this paper we study the Bures fidelity for thermal states of a diagonalizable quadratic Hamiltonian in multi-mode Fock space. To the best of our knowledge, no one has yet attempted to give an explicit general formula of fidelity of mixed states in multi-mode systems.||Source Title:||Journal of Physics A: Mathematical and General||URI:||http://scholarbank.nus.edu.sg/handle/10635/95908||ISSN:||03054470||DOI:||10.1088/0305-4470/33/27/310|
|Appears in Collections:||Staff Publications|
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