Null bootstrap for non-Hermitian Hamiltonians
Wenliang Li
Abstract
A stable physical system has an energy spectrum that is bounded from below. For quantum systems, the dangerous states of unboundedly low energies should decouple and become null. We propose the principle of nullness and apply it to the bootstrap study of Hermitian and non-Hermitian anharmonic oscillators.
Topics & Concepts
Hermitian matrixPhysicsBounded functionNull (SQL)AnharmonicityQuantumQuantum mechanicsEnergy (signal processing)Spectrum (functional analysis)Mathematical physicsMathematicsMathematical analysisComputer scienceDatabaseQuantum Mechanics and Non-Hermitian PhysicsQuantum chaos and dynamical systemsNonlinear Waves and Solitons