Second-order perturbation theory in continuum quantum Monte Carlo calculations
Ryan Curry, J. E. Lynn, K. E. Schmidt, Alexandros Gezerlis
Abstract
A technique that allows one to fuse nonperturbative many-body calculations and perturbative modern nuclear forces is reported on. The method was used to test some of the underlying assumptions of nuclear chiral forces and led to evidence that, at least in some regimes, they are violated.
Topics & Concepts
Monte Carlo methodQuantum Monte CarloPhysicsPerturbation theory (quantum mechanics)Statistical physicsQuantumClassical mechanicsTheoretical physicsQuantum electrodynamicsQuantum mechanicsMathematicsStatisticsNuclear physics research studiesHigh-pressure geophysics and materialsQuantum, superfluid, helium dynamics