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Time evolution in multi-state quantal systems: Use of irreducible moments

✍ Scribed by Israel Schek; Robert E. Wyatt

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 499 KB
Volume: 129
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(86)80177-4

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✦ Synopsis

Irreducible moments -power moments of the Hamiltonian in which diagrammatic paths not contributing new information are deleted before the numerical evaluation -are used to construct a tridiagonal (chain) representation of the Hamiltonian. From the chain parameters, residues and eigenvalues are computed so that the time evolution of multi-state (up to about 12000 states have been used) systems can be predicted.

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