Polarization, Alignment, and Orientation in Atomic Collisions

Abstract

The Springer Series on Atomic, Optical, and Plasma Physics covers in a comprehensive manner theory and experiment in the entire field of atoms and molecules and their interaction with electromagnetic radiation. Books in the series provide a rich source of new ideas and techniques with wide applications in fields such as chemistry, materials science, astrophysics, surface science, plasma technology, advanced optics, aeronomy, and engineering. Laser physics is a particular connecting theme that has provided much of the continuing impetus for new developments in the field, such as quantum computation and Bose-Einstein condensation. The purpose of the series is to cover the gap between standard undergraduate textbooks and the research literature with emphasis on the

Electron Scattering by Atoms, Ions, and Molecules

“…On the other hand, if identically prepared states are produced, a coherent mixture of the magnetic sublevels of the excited state is observed. For example, an excited 1 P o state can be described as |ψ 1 P = a +1 |11 + a 0 |10 + a −1 |1 − 1 (8.4) where the a M are the excitation amplitudes for the sublevels |LM with magnetic quantum number M. Theoretical analyses of coherent excitation can be found in Blum (1996), Andersen, Gallagher and Hertel (1988), and Andersen and Bartschat (2001).…”

“…Closed squares, Yalim, Cvejanovic and Crowe (1997); closed and open circles, Williams and Mikosza (2006); closed triangles, Gradziel and O'Neill (2004); open triangles, O'Neill et al (1998);open squares, Nic Chormaic, Chwirot and Slevin (1993); open diamonds, Williams (1986); full line, the PECS theory of Bartlett et al (2005). Adapted from Williams and Mikosza (2006 More detailed reviews of angular and polarization correlation and superelastic scattering studies were given by Andersen, Gallagher and Hertel (1988) Andersen et al (1997), and Andersen and Bartschat (2001).…”

“…Furthermore, an unpolarized electron beam can become polarized if an individual fine-structure level of the target is resolved. This so-called ''finestructure effect,'' originally suggested by Hanne (1976), has been seen in both excitation and ionization , Jones, Madison and Hanne (1994), and Andersen and Bartschat (2001).…”

“…Not surprisingly, ''generalized'' Stokes parameters (Andersen and Bartschat (2001)) have to be defined that depend on the electron polarization as well as the position and the setting of the light analyzers. In addition to performing very difficult angle-resolved electron−photon coincidence experiments, it has become evident that some interesting information can already be obtained by only observing the polarization of the emitted light.…”

Quantum characteristics of occurrence scattering time in two-component non-ideal plasmas

“…The atomic collision processes [1][2][3][4][5][6][7][8][9][10][11] such as the elastic collision, electron-impact excitation and ionization, and electron capture have received considerable interests in astrophysics, atomic physics, and plasma physics since the collision processes provide useful information on the collision mechanisms as well as the surrounding physical environments including the collision system. It is shown that the time-development of the atomic collision process has the physical characteristics of the energy dependence since the phase shift contains the physical information of the collision process [1,4].…”