Results 61 to 70 of about 86,378 (158)

Relativistic quantum mechanics

, 2016
Abstract This chapter starts with a brief summary of special relativity, describing how 4-vectors and the Lorentz transformation can be represented by complex matrices. Spinors are introduced as basic building blocks of special relativity, allowing a demonstration of how the Weyl equation and the Dirac equation emerge from the Lorentz ...
G. Barr, R. Devenish, R. Walczak, T. Weidberg   +3 more
openaire   +1 more source

Relativistic quantum mechanics [PDF]

Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1932
The steady development of the quantum theory that has taken place during the present century was made possible only by continual reference to the Correspondence Principle of Bohr, according to which, classical theory can give valuable information about quantum phenomena in spite of the essential differences in the fundamental ideas of the two theories.
openaire   +1 more source

The Wigner formalism on black hole geometries

European Physical Journal C: Particles and Fields
This work explores the intersection of quantum mechanics and curved spacetime by employing the Wigner formalism to investigate quantum systems in the vicinity of black holes.
Jose A. R. Cembranos, David García García   +1 more
doaj   +1 more source

On hydrogen-like bound states in N $$ \mathcal{N} $$ = 4 super Yang-Mills

Journal of High Energy Physics, 2017
Using relativistic quantum mechanics, we study the spectrum of a non-BPS two-particle bound state in the massive phase of N $$ \mathcal{N} $$ = 4 super Yang-Mills, in the limit when one of the particles is infinitely heavier than the other.
Yusuke Sakata, Robin Schneider, Yuji Tachikawa, Takemasa Yamaura   +3 more
doaj   +1 more source

What is the relativistic spin operator?

New Journal of Physics, 2014
Although the spin is regarded as a fundamental property of the electron, there is no universally accepted spin operator within the framework of relativistic quantum mechanics.
Heiko Bauke, Sven Ahrens, Christoph H Keitel, Rainer Grobe   +3 more
doaj   +1 more source

Earthquake Quantization [PDF]

Quantum
In this homage to Einstein's 144th birthday we propose a novel quantization prescription, where the paths of a path-integral are not random, but rather solutions of a geodesic equation in a random background.
Benjamin Koch, Enrique Muñoz
doaj   +1 more source

Quantum Speed Limit for Relativistic Spin-0 and Spin-1 Bosons on Commutative and Noncommutative Planes

Advances in High Energy Physics, 2017
Quantum speed limits of relativistic charged spin-0 and spin-1 bosons in the background of a homogeneous magnetic field are studied on both commutative and noncommutative planes.
Kang Wang, Yu-Fei Zhang, Qing Wang, Zheng-Wen Long, Jian Jing   +4 more
doaj   +1 more source

Fisher Information and Electromagnetic Interacting Dirac Spinors

Axioms
In earlier works, it was demonstrated that Schrödinger’s equation, which includes interactions with electromagnetic fields, can be derived from a fluid dynamic Lagrangian framework.
Asher Yahalom
doaj   +1 more source

Classical eikonal in relativistic scattering

Journal of High Energy Physics
The classical eikonal is defined to be the generator of all scattering observables in a scattering problem in classical mechanics. It was originally introduced as the log of the quantum S-matrix in the classical limit.
Sungsoo Kim, Hojin Lee, Sangmin Lee
doaj   +1 more source

Quantum corrections to tunnelling amplitudes of neutral scalar fields

European Physical Journal C: Particles and Fields
Though theoretical treatments of quantum tunnelling within single-particle quantum mechanics are well-established, at present, there is no quantum field-theoretic description (QFT) of tunnelling.
Rosemary Zielinski, Patrick McGlynn, Cédric Simenel   +2 more
doaj   +1 more source