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Quasi-Hermitian Hamiltonians associated with exceptional orthogonal polynomials
Authors:Bikashkali Midya
Affiliation:Physics and Applied Mathematics Unit, Indian Statistical Institute, Kolkata 700108, India
Abstract:Using the method of point canonical transformation, we derive some exactly solvable rationally extended quantum Hamiltonians which are non-Hermitian in nature and whose bound state wave functions are associated with Laguerre- or Jacobi-type X1X1 exceptional orthogonal polynomials. These Hamiltonians are shown, with the help of imaginary shift of coordinate: e−αpxeαp=x+iαeαpxeαp=x+iα, to be both quasi- and pseudo-Hermitian. It turns out that the corresponding energy spectra is entirely real.
Keywords:Quasi-Hermiticity   Exceptional orthogonal polynomial   Point canonical transformation
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