Abstract:An alternative approximation scheme has been used in solving the Schrödinger equation for the exponential-cosine-screened Coulomb potential.The bound state energıes for various eigenstates and the corresponding wave functions are obtained analytically up to the second perturbation term.
“…where σ(z) and σ(z) are polynomials, at most second degree, and τ (z) is a polynomial of first degree [31,39,40,51,57,73,74,93,98,99,102,104,103,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122].…”
Section: Appendix a The Nikiforov-uvarov Methodsmentioning
By using the Nikiforov-Uvarov method, we give the approximate analytical solutions of the Dirac equation with the shifted Deng-Fan potential including the Yukawa-like tensor interaction under the spin and pseudospin symmetry conditions. After using an improved approximation scheme, we solved the resulting schrödinger-like equation analytically. Numerical results of the energy eigenvalues are also obtained, as expected, the tensor interaction removes degeneracies between spin and pseudospin doublets.
“…where σ(z) and σ(z) are polynomials, at most second degree, and τ (z) is a polynomial of first degree [31,39,40,51,57,73,74,93,98,99,102,104,103,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122].…”
Section: Appendix a The Nikiforov-uvarov Methodsmentioning
By using the Nikiforov-Uvarov method, we give the approximate analytical solutions of the Dirac equation with the shifted Deng-Fan potential including the Yukawa-like tensor interaction under the spin and pseudospin symmetry conditions. After using an improved approximation scheme, we solved the resulting schrödinger-like equation analytically. Numerical results of the energy eigenvalues are also obtained, as expected, the tensor interaction removes degeneracies between spin and pseudospin doublets.
“…The spin symmetry is relevant for mesons [24] and the pseudo-spin symmetry has been used to explain the features of deformed nuclei [25], superdeformation [26], and to establish an effective nuclear shell model scheme [21,22]. Also, some researchers, various potentials such as the mie-type potential [27], Coulomb-like potential [28], Wood-Saxon potential [19], Eckart potential [29], etc., have been studied within the frame work of the spin and pseudo-spin symmetries.…”
We study the relativistic equation of spin-1/2 particles under the hyperbolic potential and a Coulomb-like tensor potential. By using the generalized parametric of the NikiforovUvarov method and the pseudo-spin symmetry, we obtain the energy eigenvalues equation and the corresponding unnormalized wave functions. Some numerical results are given, too.
“…In a latter study [32], Egrifes and Sever investigated the bound-state solutions of the 1D Dirac equation for real and complex forms of generalized Hulthén potential for PT −symmetric potentials with complex generalized Hulthén potential. In recent works, we have solved the 1D Schrödinger equation with the PT −symmetric modified Hulthén and Woods-Saxon (WS) potentials for ℓ = 0 bound-state spectra and their corresponding wave functions [40,41] using the NikiforovUvarov (NU) method [42]. In the latter case, we investigated the PT −symmetric property and the reality of the spectrum for different real and complex versions of the modified WS potentials [41].…”
The one-dimensional spinless Salpeter equation has been solved for the PT -symmetric generalized Hulthén potential. The Nikiforov-Uvarov (NU) method which is based on solving the second-order linear differential equations by reduction to a generalized equation of hypergeometric type is used to obtain exact energy eigenvalues and corresponding eigenfunctions. We have investigated the positive and negative exact bound states of the s-states for different types of complex generalized Hulthén potentials.
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