Symbolic calculations of unitary transformations in quantum dynamics

Abstract The present paper deals with the development of a Mathematica package of programs for handling quantum mechanical equations involving commutators and unitary transformations. One program implements general commutators handling rules. Another evaluates a series of nested commutators representing a general unitary transformations. We apply these new symbolic routines to test-transformations, ranging from simple translations in both spatial and momentum spaces to transformations involving nonlin... Title of program: NCComAlgebra Catalogue Id: ADJL_v1_0 Nature of problem Computer algebra implementation of the definition of a commutator, of commutator handling rules. Symbolic evaluation of unitary transformations for use in quantum dynamical problems. Versions of this program held in the CPC repository in Mendeley Data ADJL_v1_0; NCComAlgebra; 10.1016/S0010-4655(98)00129-5 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)