Zobrazeno 1 - 10
of 73
pro vyhledávání: '"David M. Wardlaw"'
Autor:
David M. Wardlaw, Alexei M. Frolov
Publikováno v:
Journal of Mathematical Chemistry. 56:630-649
We have developed the new approach which can be used for accurate evaluations of the bremsstrahlung cross-sections in the case of few-electron atoms and ions. Our approach is based on the explicit formula for the electron density distribution in such
Autor:
Alexei M. Frolov, David M. Wardlaw
Publikováno v:
Journal of Mathematical Chemistry. 53:1426-1444
A few approaches are derived to calculate three-particle integrals which include spherical Bessel functions of the first and second kind, i.e., the $$j_{\ell }(V r)$$ and $$n_{\ell }(V r)$$ functions. Such integrals are important in applications to v
Autor:
Alexei M. Frolov, David M. Wardlaw
Results of accurate computations of bound states in three- and four-electron atomic systems are discussed. Bound state properties of the four-electron lithium ion Li$^{-}$ in its ground $2^{2}S-$state are determined from the results of accurate, vari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21efa72735cf05680d9c7b8e89c90a2e
http://arxiv.org/abs/1604.06355
http://arxiv.org/abs/1604.06355
Autor:
Alexei M. Frolov, David M. Wardlaw
`Additional' ionization of light atoms and ions during nuclear $\beta^{-}$ decay is investigated. The procedure which can be used to determine the corresponding transition probabilities and the velocity/energy spectrum of secondary electrons is devel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::073c242af670c8b31230616fcf643cea
http://arxiv.org/abs/1511.06475
http://arxiv.org/abs/1511.06475
Autor:
Alexei M. Frolov, David M. Wardlaw
We discuss an approach to accurate numerical computations of slowly convergent properties in two-electron atoms/ions which include the negatively charged Ps− (e − e + e −) and H− ions, He atom and positively charged, helium-like ions from Li+
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf281366a64e7a2f842cf5109bd31e85
http://arxiv.org/abs/1511.02157
http://arxiv.org/abs/1511.02157
Autor:
Paul Brumer, David M. Wardlaw
Publikováno v:
International Journal of Quantum Chemistry. 20:583-594
Recent developments in quantum and classical N-body time delay theory and, in particular, the spectral property are presented. The discussion is oriented towards problems of chemical physics interest and the physical insight afforded by the spectral
Publikováno v:
Bulletin of the Korean Chemical Society. 29:2252-2258
In rationalizing such results one of the guidingprinciples that has come through theoretical and experi-mental studies is the concept of electronegativity, i.e. thatincrease in electron density of an atomic nucleus enhancesits shielding, resulting in
Autor:
David M. Wardlaw, Alexei M. Frolov
Publikováno v:
Physics Letters A. 372:6721-6726
The stability of the five-body bi-positronium ion Ps 2 e − ( = e 3 − e 2 + ) is considered. It is shown that the predicted stability of the negative bi-positronium ion substantially depends upon permutation symmetry of the total electron–positr
Autor:
Alexei M. Frolov, David M. Wardlaw
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 40:4179-4186
The bound-state properties and hyperfine structure splitting in the ground S 1 (L = 0)-states of the three-electron beryllium-muonic atoms 9 Be 4+ µ − e − and 10 Be 4+ µ − e − are determined numerically with the use of highly accurate varia
Autor:
Jeffrey T. Paci, David M. Wardlaw
Publikováno v:
The Journal of Chemical Physics. 119:7824-7837