scholarly journals Quasi-exactly solvable periodic potentials for the particle with the periodic position-dependent mass

2014 ◽  
Vol 18 (1) ◽  
Author(s):  
O. Voznyak
2021 ◽  
Vol 2090 (1) ◽  
pp. 012165
Author(s):  
G Ovando ◽  
J J Peña ◽  
J Morales ◽  
J López-Bonilla

Abstract The exactly solvable Position Dependent Mass Schrödinger Equation (PDMSE) for Mie-type potentials is presented. To that, by means of a point canonical transformation the exactly solvable constant mass Schrödinger equation is transformed into a PDMSE. The mapping between both Schrödinger equations lets obtain the energy spectra and wave functions for the potential under study. This happens for any selection of the O von Roos ambiguity parameters involved in the kinetic energy operator. The exactly solvable multiparameter exponential-type potential for the constant mass Schrödinger equation constitutes the reference problem allowing to solve the PDMSE for Mie potentials and mass functions of the form given by m(x) = skx s-1/(xs + 1))2. Thereby, as a useful application of our proposal, the particular Lennard-Jones potential is presented as an example of Mie potential by considering the mass distribution m(x) = 6kx 5/(x 6 + 1))2. The proposed method is general and can be straightforwardly applied to the solution of the PDMSE for other potential models and/or with different position-dependent mass distributions.


2007 ◽  
Vol 107 (15) ◽  
pp. 3039-3045 ◽  
Author(s):  
J. J. Peña ◽  
G. Ovando ◽  
J. Morales ◽  
J. García-Ravelo ◽  
C. Pacheco-García

2010 ◽  
Vol 25 (34) ◽  
pp. 2915-2922
Author(s):  
T. K. JANA ◽  
P. ROY

It is shown that Hamiltonians of the form H(s) = (1 - s)H- + sH+, 0 ≤ s ≤ 1 where H± are supersymmetric partner Hamiltonians corresponding to position-dependent mass Schrödinger equations are exactly solvable for a number of deformed shape-invariant potentials. The method has also been extended to a system with broken supersymmetry.


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