Quantum Groups, Quantum Spacetime, and Dirac Equation

1993 ◽  
pp. 221-230 ◽  
Author(s):  
Arne Schirrmacher
Keyword(s):  
Dirac Equation ◽  
Quantum Groups ◽  
Quantum Spacetime

Bosonic Symmetries, Solutions, and Conservation Laws for the Dirac Equation with Nonzero Mass

2013 ◽  
Vol 58 (6) ◽  
pp. 523-533 ◽  
Author(s):  
V.M. Simulik ◽  
◽  
I.Yu. Krivsky ◽  
I.L. Lamer ◽  
◽  
...  
Keyword(s):  
Dirac Equation ◽  
Conservation Laws

SPIN-SPIN INTERACTION IN ONE PARTICLE DIRAC EQUATION

1999 ◽  
Vol 4 (0) ◽  
pp. 66-68
Author(s):  
І. І. Гайсак ◽  
В. С. Морохович
Keyword(s):  
Dirac Equation ◽  
Spin Interaction

The inner bound of quantum spacetime

2019 ◽  
Author(s):  
Matheus Pereira Lobo
Keyword(s):  
Wigner Function ◽  
Uncertainty Principle ◽  
Quantum Spacetime

This article addresses the connection of the UNCERTAINTY PRINCIPLE with the WIGNER FUNCTION.

Introduction to Relativistic Quantum Chemistry

2007 ◽  
Author(s):  
Kenneth G. Dyall ◽  
Knut Faegri
Keyword(s):  
Dirac Equation ◽  
Quantum Chemistry ◽  
Relativistic Theory ◽  
Density Functional ◽  
Relativistic Quantum ◽  
Relativistic Effects ◽  
Basis Sets ◽  
Spin Orbit ◽  
Approximate Methods ◽  
Nonrelativistic Theory

This book provides an introduction to the essentials of relativistic effects in quantum chemistry, and a reference work that collects all the major developments in this field. It is designed for the graduate student and the computational chemist with a good background in nonrelativistic theory. In addition to explaining the necessary theory in detail, at a level that the non-expert and the student should readily be able to follow, the book discusses the implementation of the theory and practicalities of its use in calculations. After a brief introduction to classical relativity and electromagnetism, the Dirac equation is presented, and its symmetry, atomic solutions, and interpretation are explored. Four-component molecular methods are then developed: self-consistent field theory and the use of basis sets, double-group and time-reversal symmetry, correlation methods, molecular properties, and an overview of relativistic density functional theory. The emphases in this section are on the basics of relativistic theory and how relativistic theory differs from nonrelativistic theory. Approximate methods are treated next, starting with spin separation in the Dirac equation, and proceeding to the Foldy-Wouthuysen, Douglas-Kroll, and related transformations, Breit-Pauli and direct perturbation theory, regular approximations, matrix approximations, and pseudopotential and model potential methods. For each of these approximations, one-electron operators and many-electron methods are developed, spin-free and spin-orbit operators are presented, and the calculation of electric and magnetic properties is discussed. The treatment of spin-orbit effects with correlation rounds off the presentation of approximate methods. The book concludes with a discussion of the qualitative changes in the picture of structure and bonding that arise from the inclusion of relativity.

scholarly journals On cocycle twisting of compact quantum groups

2010 ◽  
Vol 258 (10) ◽  
pp. 3362-3375 ◽  
Author(s):  
Kenny De Commer
Keyword(s):  
Quantum Groups ◽  
Compact Quantum Groups

scholarly journals Virial identity and weak dispersion for the magnetic Dirac equation

2011 ◽  
Vol 95 (2) ◽  
pp. 137-150 ◽  
Author(s):  
Nabile Boussaid ◽  
Piero D'Ancona ◽  
Luca Fanelli
Keyword(s):  
Dirac Equation ◽  
Virial Identity

scholarly journals Photonic realization of the κ -deformed Dirac equation

2021 ◽  
Vol 104 (1) ◽  
Author(s):  
P. Majari ◽  
E. Sadurní ◽  
M. R. Setare ◽  
J. A. Franco-Villafañe ◽  
T. H. Seligman
Keyword(s):  
Dirac Equation
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