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Some properties of minimal and nonminimal vector interactions in the Duffin-Kemmer-Petiau (DKP) formalism are discussed. The conservation of the total angular momentum for spherically symmetric nonminimal potentials is derived from its…

High Energy Physics - Theory · Physics 2015-05-28 L. B. Castro , A. S. de Castro

Vector couplings in the Duffin-Kemmer-Petiau theory are revised. It is shown that minimal and nonminimal vector potentials behave differently under charge-conjugation and time-reversal transformations. In particular, it is shown that…

High Energy Physics - Theory · Physics 2010-01-21 T. R. Cardoso , L. B. Castro , A. S. de Castro

The quantum dynamics of charged scalar bosons in a Bonnor-Melvin-$\Lambda$ universe is considered. In this study, the behavior of charged scalar bosons is explored within the framework of the Duffin-Kemmer-Petiau (DKP) formalism. Adopting a…

General Relativity and Quantum Cosmology · Physics 2024-05-30 Luis B. Castro , Angel E. Obispo , Andrés G. Jirón

The relativistic quantum dynamics of scalar bosons in the background of a full vector coupling (minimal plus nonminimal vector couplings) is explored in the context of the Duffin-Kemmer-Petiau formalism. The Coulomb phase shift is…

High Energy Physics - Theory · Physics 2017-05-18 Luis B. Castro , Luiz P. de Oliveira , Marcelo G. Garcia , Antonio S. de Castro

The noninertial effect of rotating frames on the quantum dynamics of scalar bosons embedded in the background of a cosmic string is considered. In this work, scalar bosons are described by the Duffin--Kemmer--Petiau (DKP) formalism.…

High Energy Physics - Theory · Physics 2016-02-12 Luis B. Castro

The Aharonov-Bohm (AB) problem for vector bosons by the Duffin-Kemmer-Petiau (DKP) formalism is analyzed. Depending on the values of the spin projection, the relevant eigenvalue equation coming from the DKP formalism reveals an equivalence…

High Energy Physics - Theory · Physics 2017-12-14 Luis B. Castro , Edilberto O. Silva

The quantum dynamics of scalar bosons embedded in the background of a cosmic string is considered. In this work, scalar bosons are described by the Duffin-Kemmer-Petiau (DKP) formalism. In particular, the effects of this topological defect…

High Energy Physics - Theory · Physics 2015-07-01 Luis B. Castro

In this work, we consider the relativistic Duffin-Kemmer-Petiau equation for spin-one particles with a nonminimal vector interaction in the presence of minimal uncertainty in momentum. By using the position space representation we exactly…

Quantum Physics · Physics 2021-02-18 B. Hamil , B. C. Lütfüoğlu , H. Aounallah

In this work, we investigate the relativistic quantum motions of spin--zero scalar bosons via the Duffin--Kemmer--Petiau (DKP) equation with a position--dependent mass (PDM) system in the background of the topological defect space--time…

General Relativity and Quantum Cosmology · Physics 2024-03-21 Abbad Moussa , Houcine Aounallah , Sebastián Valladares , Clara Rojas

The one-dimensional Klein-Gordon equation is investigated with the most general Lorentz structure for the external potentials. The analysis and calculation of the reflection and transmission coefficients for the scattering of particles in a…

Quantum Physics · Physics 2008-11-26 Tatiana R. Cardoso , Antonio S. de Castro

The problem of spin-0 and spin-1 bosons subject to a general mixing of minimal and nonminimal vector cusp potentials is explored in a unified way in the context of the Duffin-Kemmer-Petiau theory. Effects on the bound-state solutions due to…

High Energy Physics - Theory · Physics 2011-01-28 A. S. de Castro

The problem of spin-0 particles subject to a nonminimal vector double-step potential is explored in the context of the Duffin-Kemmer-Petiau theory. Surprisingly, one can never have an incident wave totally reflected and the transmission…

High Energy Physics - Theory · Physics 2015-06-04 L. P. de Oliveira , A. S. de Castro

We point out a misleading treatment in the recent literature regarding analytical solutions for nonminimal vector interaction for spin-one particles in the context of the Duffin-Kemmer-Petiau (DKP) formalism. In those papers, the authors…

High Energy Physics - Theory · Physics 2014-07-18 Luis B. Castro , Luiz P. de Oliveira

The relativistic quantum motion of scalar bosons under the influence of a full vector (minimal $A^{\mu}$ and nonminimal $X^{\mu}$) and scalar ($V_{s}$) interactions embedded in the background of a cosmic string is explored in the context of…

High Energy Physics - Theory · Physics 2020-01-10 Francisco A. Cruz Neto , Franciele M. da Silva , Luis C. N. Santos , Luis B. Castro

The Duffin-Kemmer-Petiau formalism with vector and scalar potentials is used to point out a few misconceptions diffused in the literature. It is explicitly shown that the scalar coupling makes the DKP formalism not equivalent to the…

High Energy Physics - Theory · Physics 2010-01-07 T. R. Cardoso , L. B. Castro , A. S. de Castro

The planar quantum dynamics of spin-1/2 neutral particle interacting with electrical fields is considered. A set of first order differential equations are obtained directly from the planar Dirac equation with nonminimum coupling. New…

High Energy Physics - Theory · Physics 2015-09-10 F. S. Azevedo , Edilberto O. Silva , Luis B. Castro , Cleverson Filgueiras , D. Cogollo

The non-relativistic limit of the linear wave equation for zero and unity spin bosons of mass $m$ in the Duffin-Kemmer-Petiau representation is investigated by means of a unitary transformation, analogous to the Foldy-Wouthuysen canonical…

High Energy Physics - Theory · Physics 2008-11-26 P. Yu. Moshin , J. L. Tomazelli

It is shown that the generally covariant Duffin-Kemmer-Petiau equation, formulated in the frame of the Tetrode-Weyl-Fock-Ivanenko tetrad formalism, allows for a non-relativistic approximation if the metric tensor is of a special form. The…

High Energy Physics - Theory · Physics 2011-09-15 A. A. Bogush , V. V. Kisel , N. G. Tokarevskaya , V. M. Red'kov

In this article, we solve the Duffin--Kemmer--Petiau (DKP) equation in the presence of the cusp potential for spin--one particles. We derived the scattering solutions and calculated the bound states in terms of the Whittaker functions. We…

Quantum Physics · Physics 2024-05-22 Vicente A. Arévalo , Sebastián Valladares , Clara Rojas

The general Dirac equation in 1+1 dimensions with a potential with a completely general Lorentz structure is studied. Considering mixed vector-scalar-pseudoscalar square potentials, the states of relativistic fermions are investigated. This…

Quantum Physics · Physics 2015-11-24 Luiz P. de Oliveira , Luis B. Castro
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