Quasi-exactly solvable quartic: real algebraic spectral locus

Abstract

We describe the real quasi-exactly solvable spectral locus of the PT-symmetric quartic using the Nevanlinna parametrization.

17 pages, 11 figures

References in corpus (4)

• Analytic continuation of eigenvalues of a quartic oscillator
• Y-System and Deformed Thermodynamic Bethe Ansatz
• Quasi-exactly solvable quartic: elementary integrals and asymptotics
• On eigenvalues of the Schrödinger operator with a complex-valued polynomial potential