Computer Physics Communications Program LibraryPrograms in Physics & Physical Chemistry |

[Licence| Download | New Version Template] adjl_v1_0.tar.gz(5 Kbytes) | ||
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Manuscript Title: Symbolic calculations of unitary transformations in quantum dynamics. | ||

Authors: N.-A. Nguyen, T.T. Nguyen-Dang | ||

Program title: NCComAlgebra | ||

Catalogue identifier: ADJL_v1_0Distribution format: tar.gz | ||

Journal reference: Comput. Phys. Commun. 115(1998)183 | ||

Programming language: Mathematica. | ||

Operating system: Windows NT 4.0, Windows 95. | ||

Keywords: Computer algebra, Molecular physics, Scattering, Photon, Commutator algebra, Unitary transformation. | ||

Classification: 5, 16.6. | ||

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. | ||

Restrictions:Unitary transformations are represented by a truncated, finite series of nested commutators involving the generator. The maximum number of terms presently allowed in this series is 32. This can be extended by the user. | ||

Unusual features:Uses an extension of Mathematica language offered by the package NCAlgebra. This must therefore be installed as a Mathematica add-on package. |

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