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Ordered products of exponential operators by similarity transformations
Author(s) -
Witschel W.
Publication year - 1981
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560200608
Subject(s) - matrix similarity , transformation (genetics) , similarity (geometry) , exponential function , mathematics , simple (philosophy) , pure mathematics , algebraic number , matrix (chemical analysis) , algebra over a field , lie algebra , hausdorff space , mathematical analysis , partial differential equation , computer science , chemistry , biochemistry , philosophy , epistemology , artificial intelligence , image (mathematics) , gene , chromatography
The well‐known Hausdorff similarity transformation is used to derive a number of identities for exponential operators. The method does not give new results, but is shown to be a simple alternative to Feynman disentangling, parameter differentiation–differential equation, coherent states, and Lie–algebraic‐matrix techniques.