A Mini-Review of the Kinetic Energy Partition Method in Quantum Mechanics

Abstract

Based on the idea of adiabatic symmetry, we present a novel basis set expansion method-the kinetic energy partition (KEP) method-for solving quantum eigenvalue problems. Broken symmetry is responsible for quantum entanglement in many-body systems via parametric non-adiabatic corrections. Starting from simple one-particle-in-one-dimension problems, we gradually increase the complexity in the number of particles and the interaction patterns. Our goal in the mini-review is to advocate for the utility of the KEP method in front-line research, in particular for research beginners in quantum many-body problems.