Unitary expansion of the time evolution operator
arXiv:1008.1985 · doi:10.1103/PhysRevA.82.042110
Abstract
We propose an expansion of the unitary evolution operator, associated to a given Schrödinger equation, in terms of a finite product of explicit unitary operators. In this manner, this unitary expansion can be truncated at the desired level of approximation, as shown in the given examples.
6 pages, 7 figures. Updated version, minor final changes
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