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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 and spin-1 bosons in the background of a general mixing of minimal and nonminimal vector inversely linear potentials is explored in a unified way in the context of the Duffin-Kemmer-Petiau theory. It is shown that…

Mathematical Physics · Physics 2015-05-19 A. S. de Castro

The Dirac equation is solved for a pseudoscalar Coulomb potential in a two-dimensional world. An infinite sequence of bounded solutions are obtained. These results are in sharp contrast with those ones obtained in 3+1 dimensions where no…

High Energy Physics - Theory · Physics 2015-06-26 Antonio 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

Exactly solvable models play an extremely important role in many fields of quantum physics. In this study, the Schr\"{o}dinger equation is applied for a solution of a two--dimensional (2D) problem for two particles interacting via Kratzer,…

Quantum Physics · Physics 2023-11-21 Roman Ya. Kezerashvili , Jianning Luo , Claudio R. Malvino

We study the Dirac equation in 3+1 dimensions with a general combination of scalar, vector and tensor interactions with arbitrary strengths, all of them described by central Coulomb potentials acting on a particular plane of motion. For the…

Quantum Physics · Physics 2026-03-24 V. B. Mendrot , A. S. de Castro , P. Alberto

The problem of a fermion subject to a general scalar potential in a two-dimensional world is mapped into a Sturm-Liouville problem for nonzero eigenenergies. The searching for possible bounded solutions is done in the circumstance of…

High Energy Physics - Theory · Physics 2009-11-10 Antonio S. de Castro

Schroedinger bound-state problem in D dimensions is considered for a set of central polynomial potentials (containing 2q coupling constants). Its polynomial (harmonic-oscillator-like, quasi-exact, terminating) bound-state solutions of…

Mathematical Physics · Physics 2007-05-23 Miloslav Znojil , Denis Yanovich

By using the technique of supersymmetric quantum mechanics, we study a quasi exactly solvable extension of the N-particle rational Calogero model with harmonic confining interaction. Such quasi exactly solvable many particle system, whose…

Mathematical Physics · Physics 2017-04-26 B. Basu-Mallick , Bhabani Prasad Mandal , Pinaki Roy

The radial part of Klein-Gordon equation is solved for the Woods-Saxon potential within the framework of an approximation to the centrifugal barrier. The bound states and the corresponding normalized eigenfunctions of the Woods-Saxon…

Mathematical Physics · Physics 2015-05-13 Altug Arda , Ramazan Sever

Two exactly-solvable confined models of the completely positive oscillator-shaped quantum well are proposed. Exact solutions of the position-dependent mass Schr\"odinger equation corresponding to the proposed quantum well potentials are…

Quantum Physics · Physics 2023-11-02 E. I. Jafarov , S. M. Nagiyev

We present an exact analytical solution of the fundamental system of quasi-one-dimensional spin-1 bosons with infinite delta-repulsion. The eigenfunctions are constructed from the wave functions of non-interacting spinless fermions, based…

Other Condensed Matter · Physics 2008-04-27 Frank Deuretzbacher , Klaus Fredenhagen , Daniel Becker , Kai Bongs , Klaus Sengstock , Daniela Pfannkuche

We construct new solvable rational and trigonometric spin models with near-neighbors interactions by an extension of the Dunkl operator formalism. In the trigonometric case we obtain a finite number of energy levels in the center of mass…

High Energy Physics - Theory · Physics 2009-11-10 A. Enciso , F. Finkel , A. Gonzalez-Lopez , M. A. Rodriguez

We solve the generalized relativistic harmonic oscillator in 1+1 dimensions, i.e., including a linear pseudoscalar potential and quadratic scalar and vector potentials which have equal or opposite signs. We consider positive and negative…

Nuclear Theory · Physics 2009-11-11 A. S. de Castro , P. Alberto , R. Lisboa , M. Malheiro

We present analytical solutions of the spin-zero Klein-Gordon (KG) bosons in the field of unequal mixture of scalar and vector Yukawa potential within the framework of the approximation to the centrifugal potential term for any arbitrary…

Quantum Physics · Physics 2012-07-04 Majid Hamzavi , Sameer M. Ikhdair

The problem of confinement of spinless particles in 1+1 dimensions is approached with a linear potential by considering a mixing of Lorentz vector and scalar couplings. Analytical bound-states solutions are obtained when the scalar coupling…

High Energy Physics - Theory · Physics 2009-11-11 Antonio S. de Castro

We constrain the possible bound-state solutions of the spinless Salpeter equation (the most obvious semirelativistic generalization of the nonrelativistic Schr\"odinger equation) with an interaction between the bound-state constituents…

High Energy Physics - Phenomenology · Physics 2015-04-16 Wolfgang Lucha , Franz F. Schöberl

The problem of a fermion subject to a general mixing of vector and scalar potentials in a two-dimensional world is mapped into a Sturm-Liouville problem. Isolated bounded solutions are also searched. For the specific case of an inversely…

High Energy Physics - Theory · Physics 2009-11-10 Antonio S. de Castro

This article illustrates the bound states of Kemmer equation for spin-1 particles. The asymptotic, exact and Coulomb field solutions are obtained by using action principle. In the conclusion the energy spectrum of spin-1 particles moving in…

High Energy Physics - Theory · Physics 2007-05-23 S. Gonen , A. Havare , N. Unal

We construct two new exactly solvable potentials giving rise to bound-state solutions to the Schr\"odinger equation, which can be written in terms of the recently introduced Laguerre- or Jacobi-type $X_1$ exceptional orthogonal polynomials.…

Quantum Physics · Physics 2009-11-13 C. Quesne
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