An alternate derivation of the Herman—Kluk (coherent state) semiclassical initial value representation of the time evolution operator |
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| Authors: | WILLIAM H MILLER |
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| Institution: | Department of Chemistry, and Kenneth S. Pitzer Center for Theoretical Chemistry , University of California, and Chemical Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California, 94720-1460, USA |
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| Abstract: | It is shown that the Herman—Kluk (or coherent state) initial value representation (IVR) of the semiclassical propagator (time evolution operator) can be obtained by application of a modified Filinov filtering procedure to the standard Van Vleck (coordinate space) expression for the propagator. This further illustrates the effective equivalence, semiclassically, of these various IVRs. |
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