Zobrazeno 1 - 7
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pro vyhledávání: '"Hans H. Grelland"'
Autor:
Hans H. Grelland
Publikováno v:
International Journal of Quantum Chemistry. 19:847-857
A class of multilocal functions called n-local energies, which can serve as accuracy criteria on approximate wave functions, are defined. Their interpretation is discussed and their multilocal form is shown to be a result of the holistic character of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7aefbe7d9126768f8846261d8efe0ba
https://doi.org/10.1002/qua.560190514
https://doi.org/10.1002/qua.560190514
Autor:
Hans H. Grelland
Publikováno v:
International Journal of Theoretical Physics. 23:227-232
The Poincare-covariant Hamiltonian particle dynamics proposed by Aaberge is formulated in terms ofW * algebras in the standard representation. In this way a unified description of both quantum and classical systems is provided. The classical limit (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::069af5b7add1c09ef26d7290bfe55863
https://doi.org/10.1007/bf02080688
https://doi.org/10.1007/bf02080688
Autor:
Hans H. Grelland
Publikováno v:
International Journal of Theoretical Physics. 24:179-192
The (m/M)1/2→0 limit and the adiabatic approximation for a nonrelativistic system consisting of light and heavy particles of massesm,M are studied. The method used involves a standard representation of quantum mechanics, in which the limit above ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3067a3b88d69dac8f48262efa75b7729
https://doi.org/10.1007/bf00672652
https://doi.org/10.1007/bf00672652
Publikováno v:
Chemical Physics Letters. 114:53-57
We suggest a simple procedure which makes it possible to include relativistic effects approximately in variational LCAO calculations. The scheme uses a free-particle projection, and is readily applicable to polyatomic systems. Pilot calculations on o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47c27d36a8517c36542b8559e76f552f
https://doi.org/10.1016/0009-2614(85)85054-5
https://doi.org/10.1016/0009-2614(85)85054-5
Autor:
Hans H. Grelland
Publikováno v:
International Journal of Quantum Chemistry. 19:873-883
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee5ff79cbec461347f86795e07cf00d0
https://doi.org/10.1002/qua.560190516
https://doi.org/10.1002/qua.560190516
Autor:
A-M. Martensson, Edward A. Boudreaux, S. Huzinaga, Günter Wunner, Franz Rosicky, Hans H. Grelland, P. G. H. Sanders, W.-D. Sepp, C. P. Botham, K. T. Cheng, Balazs L. Gyorffy, Hans-Joachim Freund, Lawrence L. Lohr, Donald R. Beck, Ernest R. Davidson, E. K. U. Gross, C. K. Au, Mariusz Klobukowski, B. Fricke, J. Tsekrisme Ndefru, Jens Peder Dahl, W. H. Eugen Schwarz, Keiji Morokuma, Franz Mark, Peter Weinberger, R. M. Dreizler, Julie Staunton, F. Bary Malik
Publikováno v:
Relativistic Effects in Atoms, Molecules, and Solids ISBN: 9781461335986
We present summary results of a bound-state perturbation theory for a relativistic spinless (Klein-Gordon) and a relativistic spin-half (Dirac) particle in central fields due to scalar or fourth-component vector-type interactions for an arbitrary bou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15ce8e09892ee23d34ab9d599bc66dca
https://doi.org/10.1007/978-1-4613-3596-2_20
https://doi.org/10.1007/978-1-4613-3596-2_20
Publikováno v:
The Journal of Chemical Physics. 80:6329-6330
Il est demontre que le developpement de Taylor de l'hamiltonien de Breit-Pauli ne peut etre utilise comme il l'a ete fait recemment par Chandra et Buenker et donc que leurs conclusions sont erronees
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22278a6a98c13f62a555adeff5453caf
https://doi.org/10.1063/1.446705
https://doi.org/10.1063/1.446705