Comparison equation approach to the locking of electronic angular momentum to the molecular axis in atomic collisions

1993 ◽  
Vol 89 (10) ◽  
pp. 1567 ◽  
Author(s):  
Elena I. Dashevskaya ◽  
Evgueni E. Nikitin
Keyword(s):  
Angular Momentum ◽  
Molecular Axis ◽  
Equation Approach ◽  
Atomic Collisions ◽  
Comparison Equation

scholarly journals Many-body Dyson equation approach to the seniority model of pairing

2020 ◽  
Vol 29 (04) ◽  
pp. 2050023 ◽  
Author(s):  
Peter Schuck
Keyword(s):  
Angular Momentum ◽  
Dyson Equation ◽  
Equation Approach ◽  
Many Body ◽  
Single Level ◽  
Many Body Theory ◽  
Body Theory ◽  
Angular Momentum Algebra

As is well known, the single level seniority model of pairing has been solved exactly, since long using angular momentum algebra. It is shown that it can also be solved using the Dyson equation of standard many-body theory. The formalism shows some interesting many-body aspects.

Boundary Condition for the Distribution Function of a Gas of Linear Molecules

1974 ◽  
Vol 29 (12) ◽  
pp. 1723-1735
Author(s):  
J. Halbritter
Keyword(s):  
Boundary Condition ◽  
Wave Function ◽  
Distribution Function ◽  
Angular Momentum ◽  
Interaction Potential ◽  
Transition Probability ◽  
Center Of Mass ◽  
Solid Surfaces ◽  
Molecular Axis ◽  
Linear Molecules

The scattering of linear molecules by a potential wall is studied. It is assumed that the interaction potential between the molecule and the wall depends on the distance of the center of mass of the molecule from the wall and on the orientation of the molecular axis. From the wave function of the reflected molecule an expression for the transition probability for scattering into the various final molecular states is obtained. Together with a modification of Maxwell's assumption for the interaction of atoms with solid surfaces, this transition probability is used to derive a boundary condition for the distribution function of a gas of linear rotating molecules. This also takes into account the change of rotational angular momentum in the collision with the wall.

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