Background
Fröman, Nanny Ingeborg was born on September 19, 1922 in Råneå, Sweden. Daughter of Verner and Beda (Nilsson) Johansson.
(“. . . within the numerical treatments of the Stark effec...)
“. . . within the numerical treatments of the Stark effect for the hydrogen atom the book certainly will find its firm place.” Mathematical Reviews This book treats the Stark effect of a hydrogenic atom or ion in a homogeneous electric field. It begins with a thorough review of previous work in this field since 1926. After the Schrödinger equation has been separated with respect to time dependence, centre of mass motion and internal motion, followed by a discussion of its eigenfunctions, the exact development in time of the probability amplitude for a decaying state is obtained by means of a formula analogous to the Fock–Krylov theorem. From this formula one obtains by means of the phase-integral approximation generated from a particular base function non-relativistic formulas for profiles, energies and half-widths of the Stark levels. These formulas are then transformed into formulas expressed in terms of complete elliptic integrals. The formulas thus obtained are used for the calculation of energies and half-widths of 198 different Stark states, which are compared with the corresponding results obtained by other authors with the use of other methods. An analysis of this material indicates that the energy values obtained by the phase-integral method are at least as accurate as those obtained by other methods in more than half of the 198 cases. The book presents one of the most comprehensive asymptotic treatments of the Stark effect in atomic hydrogen that have been published.
http://www.amazon.com/Stark-Effect-Hydrogenic-Atom-Phase-Integral/dp/B00MWRLMZ6%3FSubscriptionId%3DAKIAJRRWTH346WSPOAFQ%26tag%3Dprabook-20%26linkCode%3Dsp1%26camp%3D2025%26creative%3D165953%26creativeASIN%3DB00MWRLMZ6
(The result of two decades spent developing and refining t...)
The result of two decades spent developing and refining the phase-integral method to a high level of precision, the authors have applied this method to problems in various fields of theoretical physics. The problems treated are of a mathematical nature, but have important physical applications. This book will thus be of great use to research workers in various branches of theoretical physics, where the problems can be reduced to one-dimensional second-order differential equations of the Schrödinger type for which phase-integral solutions are required. Includes contributions from notable scientists who have already made use of the authors'technique.
http://www.amazon.com/Phase-Integral-Method-Nearlying-Transition-Philosophy/dp/1461275113%3FSubscriptionId%3DAKIAJRRWTH346WSPOAFQ%26tag%3Dprabook-20%26linkCode%3Dsp1%26camp%3D2025%26creative%3D165953%26creativeASIN%3D1461275113
(The result of two decades spent developing and refining t...)
The result of two decades spent developing and refining the phase-integral method to a high level of precision, the authors have applied this method to problems in various fields of theoretical physics. The problems treated are of a mathematical nature, but have important physical applications. This book will thus be of great use to research workers in various branches of theoretical physics, where the problems can be reduced to one-dimensional second-order differential equations of the Schrödinger type for which phase-integral solutions are required. Includes contributions from notable scientists who have already made use of the authors'technique.
http://www.amazon.com/Phase-Integral-Method-Nearlying-Transition-Philosophy/dp/0387945202%3FSubscriptionId%3DAKIAJRRWTH346WSPOAFQ%26tag%3Dprabook-20%26linkCode%3Dsp1%26camp%3D2025%26creative%3D165953%26creativeASIN%3D0387945202
(This book covers one of the most efficient approximation ...)
This book covers one of the most efficient approximation methods for the theoretical analysis and solution of problems in theoretical physics and applied mathematics. The method can be applied to any field involving second order ordinary differential equations. It is written with practical needs in mind, with 50 solved problems covering a broad range of subjects and making clear which concepts and results of the general theory are needed in each case.
http://www.amazon.com/Physical-Problems-Solved-Phase-Integral-Method/dp/0521812097%3FSubscriptionId%3DAKIAJRRWTH346WSPOAFQ%26tag%3Dprabook-20%26linkCode%3Dsp1%26camp%3D2025%26creative%3D165953%26creativeASIN%3D0521812097
Fröman, Nanny Ingeborg was born on September 19, 1922 in Råneå, Sweden. Daughter of Verner and Beda (Nilsson) Johansson.
Doctor Theoretical Physics, Uppsala University, Sweden, 1966.
Assistant professor theoretical physics, Uppsala U., 1966-1981; professor, Uppsala U., since 1981.
(The result of two decades spent developing and refining t...)
(The result of two decades spent developing and refining t...)
(This book covers one of the most efficient approximation ...)
(JWKB Approximation Contributions to the Theory)
(“. . . within the numerical treatments of the Stark effec...)
Member Austrian Academy of Sciences, Royal Society Sciences Uppsala (president 1995-1996).
Married Per Olof Fröman, March 26, 1959. L child, Gunnar.