Theory and Applications of Moment Methods in Many-Fermion Systems

ISBN-13: 9781461331223 / Angielski / Miękka / 2011 / 512 str.

B. J. Dalton; B. J. Dalton

Opis

The first international conference on "Theory and Applications of Moment Methods in Many-Fermion Systems" was held September 10 - 13, 1979 at Iowa State University. Manuscripts of the invited talks presented at this conference are the contents of this volume. These manuscripts were prepared and delivered to the editors by the authors; the responsibility for any errors in scientific con tent is theirs. While we, the editors, have made every effort to keep this volume as free from typographical errors as possible, we accept responsibility for such errors as do occur, even those which may be mistaken for scientific error. All but one of the invited talks given at the conference are reported here; those authors apparently felt unable to provide the editors with manuscripts. The editors. who also served as the organizing committee, would like to express appreciation to the sponsors of this con ference: Physics Department, Ames Laboratory, Energy and Mineral Resources Research Institute, and the Graduate College, all of Iowa State University, the National Science Foundation, and the U. S. Department of Energy. Their generosity both in terms of funding and support made the conference possible. We should also like to express our gratitude to the Interna tional Advisory Committee whose prestige lent support to the con ference and whose advice in topic selection was invaluable. Those members were: Grenoble, France R. Arvieu C. Bender Lawrence Livermore Laboratory J. B. French University of Rochester Fowler California Institute of Technology W."

Spis treści

Elementary Principles of Spectral Distribution.- Limits of Thermodynamic Models for Nuclear Level Densities.- Statistical Properties from High Resolution Proton Resonance Reactions.- Nuclear Level Densities in Astrophysics.- Astrophysical Opacities and Moment Methods in the Interpretation of Spectral Observation in Atomic Spectra.- Special Topics in Spectral Distributions.- On the Averages of Operators in Finite Fermion Systems.- Moment Techniques in Atomic and Molecular Scattering Theory.- The Representative-Vector Method for Calculating Operator Moments.- Phenomenological Approach to Nuclear Level Densities.- Stieltjes-Tchebycheff Moment-Theory Approach to Photoeffect Studies in Hilbert Space.- Polynomial Expansions and Transition Strengths.- Moment Methods and Lanczos Methods.- Spectral Distributions and Symmetries.- Calculation of Spin Cutoff Parameters using Moment Techniques.- Group Symmetries and Information Propagation.- Level Densities in Nuclear Physics.- Spectral Methods Applied to Ising Models.- The Partition Function as a Laplace Transform of a Positive Measure in the Strength Parameter.- Application of Spectral Distributions in Effective Interaction Theory.- Beta Decay and Strength Distributions.- Study of Effective Interactions and Models in Nuclei Using the Moment Method.- Realistic Hamiltonians for No-Core Moment Methods Studies.- Fixed-J Moments: Exact Calculations.- Radial Densities of Nuclear Matter and Charge Via Moment Methods.- Sum Rules, Strength Distributions and Giant Resonances.- Participants.