scholarly journals DRINFELD TWIST FOR QUANTUM su(2) IN THE ADJOINT REPRESENTATION

1998 ◽  
Vol 13 (27) ◽  
pp. 2213-2226
Author(s):  
CHRYSSOMALIS CHRYSSOMALAKOS
Keyword(s):  
Identical Particle ◽  
Adjoint Representation ◽  
R Matrix ◽  
Drinfeld Twist ◽  
Twist Element

We give a detailed description of the adjoint representation of Drinfeld's twist element, as well as its coproduct, for su q(2). We also discuss, as applications, the computation of the universal R-matrix in this representation and the problem of symmetrization of identical-particle states with quantum su(2) symmetry.

scholarly journals Construction of a Universal Twist Element from an R-Matrix

2005 ◽  
Vol 125 (2) ◽  
pp. 229-238
Author(s):  
A. A. Stolin ◽  
P. P. Kulish ◽  
E. V. Damaskinsky
Keyword(s):  
R Matrix ◽  
Twist Element

scholarly journals Relativistic B-Spline R-Matrix Calculations for Electron Collisions with Ytterbium

Atoms ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 47
Author(s):  
Kathryn R. Hamilton ◽  
Klaus Bartschat ◽  
Oleg Zatsarinny
Keyword(s):  
Experimental Data ◽  
Electron Scattering ◽  
Cross Sections ◽  
Matrix Method ◽  
Model Potential ◽  
Electron Collisions ◽  
R Matrix ◽  
B Spline ◽  
Potential Approach

We have applied the full-relativistic Dirac B-Spline R-matrix method to obtain cross sections for electron scattering from ytterbium atoms. The results are compared with those obtained from a semi-relativistic (Breit-Pauli) model-potential approach and the few available experimental data.

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