Discrete quantum mechanics
S Odake, R Sasaki - Journal of Physics A: Mathematical and …, 2011 - iopscience.iop.org
A comprehensive review of the discrete quantum mechanics with the pure imaginary shifts
and the real shifts is presented in parallel with the corresponding results in the ordinary …
and the real shifts is presented in parallel with the corresponding results in the ordinary …
Rational extensions of the quantum harmonic oscillator and exceptional Hermite polynomials
D Gómez-Ullate, Y Grandati… - Journal of Physics A …, 2013 - iopscience.iop.org
We prove that every rational extension of the quantum harmonic oscillator that is exactly
solvable by polynomials is monodromy free, and therefore can be obtained by applying a …
solvable by polynomials is monodromy free, and therefore can be obtained by applying a …
[HTML][HTML] Exactly solvable quantum mechanics and infinite families of multi-indexed orthogonal polynomials
S Odake, R Sasaki - Physics Letters B, 2011 - Elsevier
Infinite families of multi-indexed orthogonal polynomials are discovered as the solutions of
exactly solvable one-dimensional quantum mechanical systems. The simplest examples, the …
exactly solvable one-dimensional quantum mechanical systems. The simplest examples, the …
Exceptional orthogonal polynomials and the Darboux transformation
D Gómez-Ullate, N Kamran… - Journal of Physics A …, 2010 - iopscience.iop.org
We adapt the notion of the Darboux transformation to the context of polynomial Sturm–
Liouville problems. As an application, we characterize the recently described X m Laguerre …
Liouville problems. As an application, we characterize the recently described X m Laguerre …
Exceptional Laguerre and Jacobi polynomials and the corresponding potentials through Darboux–Crum transformations
R Sasaki, S Tsujimoto, A Zhedanov - Journal of Physics A …, 2010 - iopscience.iop.org
A simple derivation is presented of the four families of infinitely many shape-invariant
Hamiltonians corresponding to the exceptional Laguerre and Jacobi polynomials. The …
Hamiltonians corresponding to the exceptional Laguerre and Jacobi polynomials. The …
[HTML][HTML] A Bochner type characterization theorem for exceptional orthogonal polynomials
MÁ García-Ferrero, D Gómez-Ullate… - Journal of Mathematical …, 2019 - Elsevier
It was recently conjectured that every system of exceptional orthogonal polynomials is
related to a classical orthogonal polynomial system by a sequence of Darboux …
related to a classical orthogonal polynomial system by a sequence of Darboux …
Two-step Darboux transformations and exceptional Laguerre polynomials
D Gomez-Ullate, N Kamran, R Milson - Journal of Mathematical Analysis …, 2012 - Elsevier
It has been recently discovered that exceptional families of Sturm–Liouville orthogonal
polynomials exist, that generalize in some sense the classical polynomials of Hermite …
polynomials exist, that generalize in some sense the classical polynomials of Hermite …
Solvable rational extensions of the isotonic oscillator
Y Grandati - Annals of Physics, 2011 - Elsevier
Combining recent results on rational solutions of the Riccati–Schrödinger equations for
shape invariant potentials to the finite difference Bäcklund algorithm and specific symmetries …
shape invariant potentials to the finite difference Bäcklund algorithm and specific symmetries …
[HTML][HTML] Asymptotic and interlacing properties of zeros of exceptional Jacobi and Laguerre polynomials
In this paper we state and prove some properties of the zeros of exceptional Jacobi and
Laguerre polynomials. Generically, the zeros of exceptional polynomials fall into two …
Laguerre polynomials. Generically, the zeros of exceptional polynomials fall into two …
Novel enlarged shape invariance property and exactly solvable rational extensions of the Rosen-Morse II and Eckart potentials
C Quesne - SIGMA. Symmetry, Integrability and Geometry: Methods …, 2012 - emis.de
The existence of a novel enlarged shape invariance property valid for some rational
extensions of shape-invariant conventional potentials, first pointed out in the case of the …
extensions of shape-invariant conventional potentials, first pointed out in the case of the …