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In this brief review, we comment on the concept of shape invariant potentials, which is an essential feature in many settings of $N=2$ supersymmetric quantum mechanics. To motivate its application within supersymmetric quantum cosmology, we…

General Relativity and Quantum Cosmology · Physics 2022-06-07 S. Jalalzadeh , S. M. M. Rasouli , P. V. Moniz

In this paper we study the shape differentiability properties of a class of boundary integral operators and of potentials with weakly singular pseudo-homogeneous kernels acting between classical Sobolev spaces, with respect to smooth…

Numerical Analysis · Mathematics 2012-03-02 Martin Costabel , Frédérique Le Louër

We introduce a numerical method to obtain approximate eigenvalues for some problems of Sturm-Liouville type. As an application, we consider an infinite square well in one dimension in which the mass is a function of the position. Two…

Quantum Physics · Physics 2014-02-24 Juan Jose Alvarez , Manuel Gadella , Luis Pedro Lara

A method for a calculation of quantum capacitance for a two-dimesional electron gas (2DEG) in potential wells of complicated geometry on the base of a quantum wave impedance technique was proposed. The application of this method was…

Quantum Physics · Physics 2020-10-23 O. I. Hryhorchak

We develop an approach for designing complex potentials with two or three coexisting spectral singularities in the spectra of the respective Schr\"odinger operators. The approach is illustrated with several examples. In addition, we offer a…

Mathematical Physics · Physics 2020-07-21 Vladimir V. Konotop , Dmitry A. Zezyulin

We apply power series expansion to symmetric multi-well oscillators bounded by two infinite walls. The spectrum and expectation values obtained are compared with available exact and approximate values for the unbounded ones. It is shown…

Quantum Physics · Physics 2007-05-23 H. A. Alhendi , E. I. Lashin

A class of three-dimensional models which satisfy supersymmetric intertwining relations with the simplest - oscillator-like - variant of shape invariance is constructed. It is proved that the models are not amenable to conventional…

High Energy Physics - Theory · Physics 2015-06-12 M. S. Bardavelidze , F. Cannata , M. V. Ioffe , D. N. Nishnianidze

A new model for the double well potential is presented in the paper. In the new potential, the exchanging rate could be easily calculated by the perturbation method in supersymmetric quantum mechanics. It gives good results whether the…

Quantum Physics · Physics 2015-05-18 Guihua Tian

In this paper, we show that an attempt to construct shape invariant extensions of a known shape invariant potential leads to, apart from a shift by a constant, the well known technique of isospectral shift deformation. Using this, we…

Mathematical Physics · Physics 2015-09-30 S. Sree Ranjani , R. Sandhya , A. K Kapoor

We obtain three new solvable, real, shape invariant potentials starting from the harmonic oscillator, P\"oschl-Teller I and P\"oschl-Teller II potentials on the half-axis and extending their domain to the full line, while taking special…

High Energy Physics - Theory · Physics 2008-11-26 R. Dutt , A. Gangopadhyaya , C. Rasinariu , U. Sukhatme

Shape Invariant potentials in the sense of [Gendenshte\"{\i}n L.\'E., JETP Lett. 38, (1983) 356] which depend on more than two parameters are not know to date. In [Cooper F., Ginocchio J.N. and Khare A., Phys. Rev. {\bf 36 D}, (1987) 2458]…

High Energy Physics - Theory · Physics 2008-11-26 José F. Cariñena , Arturo Ramos

An appropriateness of a space asymmetry of shape invariant potentials with scaling of parameters and potentials of Shabat and Spiridonov in calculation of their forms, wave functions and discrete energy spectra has proved and has…

High Energy Physics - Theory · Physics 2007-05-23 Sergei P. Maydanyuk , Liliya M. Saryan

An algebraic treatment of shape-invariant potentials in supersymmetric quantum mechanics is discussed. By introducing an operator which reparametrizes wave functions, the shape-invariance condition can be related to a oscillator-like…

High Energy Physics - Theory · Physics 2009-10-22 T. Fukui , N. Aizawa

Using the underlying algebraic structures of Natanzon potentials, we discuss conditions that generate shape invariant potentials. In fact, these conditions give all the known shape invariant potentials corresponding to a translational…

High Energy Physics - Theory · Physics 2007-05-23 Asim Gangopadhyayaa , Jeffry V. Mallow , Uday P. Sukhatme

Quantum mechanical potentials satisfying the property of shape invariance are well known to be algebraically solvable. Using a scaling ansatz for the change of parameters, we obtain a large class of new shape invariant potentials which are…

High Energy Physics - Theory · Physics 2009-10-22 A. Khare , U. P. Sukhatme

We show that shape invariance appears when a quantum mechanical model is invariant under a centrally extended superalgebra endowed with an additional symmetry generator, which we dub the shift operator. The familiar mathematical and…

Quantum Physics · Physics 2009-11-10 Michael Faux , Donald Spector

We construct rational extensions of the Darboux-P\"oschl-Teller and isotonic potentials via two-step confluent Darboux transformations. The former are strictly isospectral to the initial potential, whereas the latter are only…

Mathematical Physics · Physics 2015-07-29 Yves Grandati , Christiane Quesne

We show that the method developed by Gangopadhyaya, Mallow, and their coworkers to deal with (translationally) shape invariant potentials in supersymmetric quantum mechanics and consisting in replacing the shape invariance condition, which…

Mathematical Physics · Physics 2020-11-11 C. Quesne

It is shown that for a class of position dependent mass Schroedinger equation the shape invariance condition is equivalent to a potential symmetry algebra. Explicit realization of such algebras have been obtained for some shape invariant…

Mathematical Physics · Physics 2015-05-13 T. K. Jana , P. Roy

In supersymmetric quantum mechanics, exact-solvability of one-dimensional quantum systems can be classified only with an additional assumption of integrability, the so-called shape invariance condition. In this paper we show that in the…

Mathematical Physics · Physics 2015-05-13 Choon-Lin Ho