27 citations · 67 across the 6 of their papers we have counts for
6 papers
Exact treatment of dispersion relations in pp and pp elastic scattering
E. Ferreira, A. K. Kohara, J. Sesma
Based on a study of the properties of the Lerch's transcendent, exact closed forms of dispersion relations for amplitudes and for derivatives of amplitudes in pp and pp scattering…
Global solution of the cubic oscillator
E. M. Ferreira, J. Sesma
The eigenstates of a real or complex cubic anharmonic oscillator are investigated using original and alternative methods. The procedure consists of determining global solutions of…
One-dimensional quantum scattering by a parabolic odd potential
Erasmo M. Ferreira, Javier Sesma
Quantum scattering by a one-dimensional odd potential proportional to the square of the distance to the origin is considered. The Schrödinger equation is solved exactly and explici…
The generalized quantum isotonic oscillator
Javier Sesma
Recently, it has been proved that a nonlinear quantum oscillator, generalization of the isotonic one, is exactly solvable for certain values of its parameters. Here we show that th…
Zeros of the Macdonald function of complex order
Erasmo M. Ferreira, Javier Sesma
The z-zeros of the modified Bessel function of the third kind K_{nu}(z), also known as modified Hankel function or Macdonald function, are considered for arbitrary complex values o…
A new strategy to find bound states in anharmonic oscillators
Francisco J. Gomez, Javier Sesma
A very simple procedure to calculate eigenenergies of quantum anharmonic oscillators is presented. The method, exact but for numerical computations, consists merely in requiring th…