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We study the motion of a spin 1/2 particle in a scalar as well as a magnetic field within the framework of supersymmetric quantum mechanics(SUSYQM). We also introduce the concept of shape invariant scalar and magnetic fields and it is shown…

Quantum Physics · Physics 2009-10-31 V. M. Tkachuk , P. Roy

We develop relativistic wave equations in the framework of the new non-hermitian ${\cal PT}$ quantum mechanics. The familiar Hermitian Dirac equation emerges as an exact result of imposing the Dirac algebra, the criteria of ${\cal…

High Energy Physics - Theory · Physics 2014-07-02 Katherine Jones-Smith , Harsh Mathur

We consider the motion of spinning particles in the field of a well known vacuum static axially-symmetric spacetime, known as $\gamma$ metric, that can be interpreted as a generalization of the Schwarzschild manifold to include prolate or…

General Relativity and Quantum Cosmology · Physics 2019-11-28 Bobir Toshmatov , Daniele Malafarina

From the observed results, we deduced that the mass of the neutrino is about 10^(-1) eV and the mass of the fourth stable elementary particle (delta) is about 10^(0) eV. While neutrino is related to electro-weak field, the fourth stable…

General Physics · Physics 2016-12-26 Xiaodong Huang , Wuliang Huang

We propose that the four-velocity of a Dirac particle is related to its relativistic wave function by $u^i=\bar{\psi}\gamma^i\psi/\bar{\psi}\psi$. This relativistic wave$-$particle duality relation is demonstrated for a free particle…

General Relativity and Quantum Cosmology · Physics 2024-07-08 Francisco Ribeiro Benard Guedes , Nikodem Janusz Popławski

The Klein-Gordon and the Dirac equations with vector and scalar potentials are investigated under a more general condition, $V_{v}=V_{s} + \mathrm{const.}$ These isospectral problems are solved in a case of squared trigonometric potential…

High Energy Physics - Theory · Physics 2008-11-26 Luis B. Castro , Antonio S. de Castro

General quantum-mechanical description of relativistic particles and nuclei with spin 1/2 channeled in bent crystals is performed with the use of the cylindrical coordinate system. The previously derived Dirac equation in this system is…

High Energy Physics - Phenomenology · Physics 2015-08-04 A. J. Silenko

Working strictly within the physics theories of Special and General Relativity, I have produced a series of studies developing a consistent mathematical description of tachyons, using both classical and quantum frameworks for particles and…

General Physics · Physics 2022-06-08 Charles Schwartz

In earlier work we showed how to handle the Group Theoretical issue of the Little Group for spin 1/2 tachyons by introducing a special metric in the Hilbert space of one-particle states. Here that technique is extended to tachyons of any…

General Physics · Physics 2022-02-03 Charles Schwartz

A generalization of the Lagrangian introduced earlier in [2011 {\it J. Phys. G} ${\bf 37}$ 105001] for a classical color spinning particle interacting with background non-Abelian gauge and fermion fields for purpose of considering a change…

High Energy Physics - Theory · Physics 2011-12-12 Yuri A. Markov , Margarita A. Markova , Alexey A. Shishmarev , Alexander N. Vall

The motion of a spinning test particle given by the Mathisson-Papapetrou equations is studied on an exterior vacuum C metric background spacetime describing the accelerated motion of a spherically symmetric gravitational source. We consider…

General Relativity and Quantum Cosmology · Physics 2009-01-12 Donato Bini , Christian Cherubini , Andrea Geralico , Bahram Mashhoon

Einstein's theory of special relativity(SR) and the principle of causality imply that the speed of any moving object can not exceed that of light in a vacuum($c$).However,there were many attempts in literature discussing the particle moving…

High Energy Physics - Phenomenology · Physics 2007-05-23 Guang-jiong Ni

We investigate the possibility and consequences of the existence of particles having negative relativistic masses, and show that their existence implies the existence of faster- than-light particles (tachyons). Our proof requires only two…

General Relativity and Quantum Cosmology · Physics 2014-07-24 J. X. Madarász , G. Székely , M. Stannett

We investigate the relativistic effects of a moving particle in the field of a pseudo-harmonic oscillatory ring-shaped potential under the spin and pseudo-spin symmetric Dirac wave equation. We obtain the bound state energy eigenvalue…

Quantum Physics · Physics 2017-04-05 Mahdi Eshgh , Hussain Mehraban , Sameer M. Ikhdair

We considered Weinberg-like equations in the article [1] in order to construct the Feynman-Dyson propagator for the spin-1 particles. This construction is based on the concept of the Weinberg field as a system of four field functions…

General Physics · Physics 2024-04-03 Valeriy V. Dvoeglazov

The canonical quantization of $D=2n$ dimensional Dirac spinning particle in the external electromagnetic field is carried out in the gauge which allows to describe simultaneously particles and antiparticles (massive and massless) already at…

High Energy Physics - Theory · Physics 2007-05-23 G. V. Grigoryan , R. P. Grigoryan

We discuss the approximate phenomenological description of the motion of a single second-class particle in a two-species totally asymmetric simple exclusion process (TASEP) on a 1D lattice. Initially, the second class particle is located at…

Statistical Mechanics · Physics 2020-01-29 Aanjaneya Kumar , Deepak Dhar

The wave equation for spin-0 massless particles with the Lorentz violating term leading to varying speed of particles is considered. This equation is represented as the first-order 6$\times$6 matrix equation. Solutions of the equation in…

High Energy Physics - Theory · Physics 2013-04-04 S. I. Kruglov

This work expands previous efforts, within the classical theories of Special and General Relativity, to include tachyons (faster-than-light particles) along with ordinary (slower-than-light) particles at any energy. The objective here is to…

General Relativity and Quantum Cosmology · Physics 2019-07-24 Charles Schwartz

In this paper, the principles of the general relativity are used to formulate quantum wave equations for spin-0 and spin-1/2 particles. More specifically, the equations are worked in a Schwarzschild-like metric. As a test, the hydrogen atom…

General Physics · Physics 2011-09-13 C. C. Barros
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