Atoms and Molecules in Strong External Fields

✍ Scribed by Detlev Koester (auth.), P. Schmelcher, W. Schweizer (eds.)

• Publisher: Springer US
• Year: 2002
• Tongue: English
• Leaves: 328
• Edition: 1
• Category: Library

✦ Synopsis

This book contains contributions to the 172. WE-Heraeus-Seminar “Atoms and Molecules in Strong External Fields,” which took place April 7–11 1997 at the Phys- zentrum Bad Honnef (Germany). The designation “strong fields” applies to external static magnetic, and/or electric fields that are sufficiently intense to cause alterations in the atomic or molecular str- ture and dynamics. The specific topics treated are the behavior and properties of atoms in strong static fields, the fundamental aspects and electronic structure of molecules in strong magnetic fields, the dynamics and aspects of chaos in highly excited R- berg atoms in external fields, matter in the atmosphere of astrophysical objects (white dwarfs, neutron stars), and quantum nanostructures in strong magnetic fields. It is obvious that the elaboration of the corresponding properties in these regimes causes the greatest difficulties, and is incomplete even today. Present-day technology has made it possible for many research groups to study the behavior of matter in strong external fields, both experimentally and theore- cally, where the phrase “experimentally” includes the astronomical observations. - derstanding these systems requires the development of modern theories and powerful computational techniques. Interdisciplinary collaborations will be helpful and useful in developing more efficient methods to understand these important systems. Hence the idea was to bring together people from different fields like atomic and molecular physics, theoretical chemistry, astrophysics and all those colleagues interested in aspects of few-body systems in external fields.

✦ Table of Contents

White Dwarfs for Physicists....Pages 1-8
Magnetic White Dwarfs: Observations in Cosmic Laboratories....Pages 9-17
Hydrogen in Strong Electric and Magnetic Fields and its Application to Magnetic White Dwarfs....Pages 19-24
Helium Data for Strong Magnetic Fields Obtained by Finite Element Calculations....Pages 25-30
The Spectrum of Atomic Hydrogen in Magnetic and Electric Fields of White Dwarf Stars....Pages 31-36
Neutron Star Atmospheres....Pages 37-48
Hydrogen Atoms in Neutron Star Atmospheres: Analytical Approximations for Binding Energies....Pages 49-54
Absorption of Normal Modes in a Strongly Magnetized Hydrogen Gas....Pages 55-60
Electronic Structure of Light Elements in Strong Magnetic Fields....Pages 61-67
From Field-Free Atoms to Finite Molecular Chains in Very Strong Magnetic Fields....Pages 69-76
The National High Magnetic Field Laboratory — A Precis....Pages 77-81
Self-Adaptive Finite Element Techniques for Stable Bound Matter-Antimatter Systems in Crossed Electric and Magnetic Fields....Pages 83-88
A Computational Method for Quantum Dynamics of a Three-Dimensional Atom in Strong Fields....Pages 89-94
Discretization Techniques Applied to Atoms Under Extreme Conditions....Pages 95-100
Computer—Algebraic Derivation of Atomic Feynman—Goldstone Expansions....Pages 101-108
Scaled-Energy Spectroscopy of Helium and Barium Rydberg Atoms in External Fields....Pages 109-119
Atoms in Crossed Fields....Pages 121-134
Hydrogen-Like Ions Moving in a Strong Magnetic Field....Pages 135-139
Center-of-Mass Effects on Atoms in Magnetic Fields....Pages 141-151
Scaling Properties for Atoms in External Fields....Pages 153-167
Time Independent and Time Dependent States of Atoms in Static External Fields....Pages 169-180
Secular Motion of 3-D Rydberg States in A Microwave Field....Pages 181-186
Spontaneous Decay of Nondispersive Wave Packets....Pages 187-192
Ionization of Helium by Static Electric Fields and Short Pulses....Pages 193-197
Adiabatic Invariants of Rydberg Electrons in Crossed Fields....Pages 199-206
Highly Excited Charged Two-Body Systems in a Magnetic Field: A Perturbation Theoretical Approach to the Classical Dynamics....Pages 207-213
Analysis of Quantum Spectra by Harmonic Inversion....Pages 215-221
Atoms in External Fields: Ghost Orbits, Catastrophes, and Uniform Semiclassical Approximations....Pages 223-231
Quadratic Zeeman Splitting of Highly Excited Relativistic Atomic Hydrogen....Pages 233-240
Neutral Two-Body Systems of Charged Particles in External Fields....Pages 241-254
On the Ground State of the Hydrogen Molecule in a Strong Magnetic Field....Pages 255-263
Hydrogen Molecule in Magnetic Fields: On Excited Σ States of the Parallel Configuration....Pages 265-274
Electronic Properties of Molecules in High Magnetic Fields: Hypermagnetizabilities of H 2 ....Pages 275-282
Shallow Donor States in a Magnetic Field....Pages 283-289
Quantum Dots in Strong Magnetic Fields....Pages 291-300
Density Functional Theory of Quantum Dots in A Magnetic Field....Pages 301-311
An Analytical Approach to the Problem of an Impurity Electron in a Quantum Well in the Presence of Electric and Strong Magnetic Fields....Pages 313-318
....Pages 319-325

✦ Subjects

Atoms, Molecules, Clusters and Plasmas;Mathematical and Computational Physics;Astronomy