Bootstrapping more QM systems

Abstract We test the bootstrap approach for determining spectrum of one dimensional Hamiltonians. In this paper we focus on problems that have a two parameter search space in approach: double well and periodic potential associated with Mathieu equation. For well, compare bootstrapped energies contributions from perturbative non-perturbative results, finding good agreement. potentials, notice gives band structure potential, but it has trouble quasi-momentum system. To make further progress dispersion relation bands, new techniques are needed.