Bootstrapping Shape Invariance: Numerical Bootstrap as a Detector of Solvable Systems

Abstract

Determining the solvability of a given quantum mechanical system is generally challenging. We discuss that the numerical bootstrap method can help us to solve this question in one-dimensional quantum mechanics. We show that the bootstrap method can derive exact energy eigenvalues in systems with shape invariance, which is a sufficient condition for solvability and which many solvable systems satisfy. The information of the annihilation operators is also obtained naturally, and thus the bootstrap method tells us why the system is solvable. We numerically demonstrate this explicitly for shape invariant potentials: harmonic oscillators, Morse potentials, Rosen-Morse potentials and hyperbolic Scarf potentials. Therefore, the numerical bootstrap method can determine the solvability of a given unknown system if it satisfies shape invariance.

28+24 pages, 12 figures, v3: several discussions and new appendix added, matches published version

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Cited by in corpus (1)

• Bootstrapping periodic quantum systems