6533b839fe1ef96bd12a59d6

RESEARCH PRODUCT

Variational Cluster Methods in Coordinate Space for Small Systems: Center of Mass Corrections Made Easy

Raymond F. BishopR GuardiolaM F FlynnE. Buendía

subject

PhysicsCoupled clusterExact resultsClassical mechanicsCluster (physics)Small systemsContext (language use)Center of massCoordinate space

description

A reexamination of the center of mass problem for light systems in the context of coupled cluster theory has produced a new variational version of the method which is developed entirely in coordinate space. It involves independent cluster functions which depend only on the relative coordinates of the subclusters of the system. In applications to the 4He nucleus described via a number of phenomenological and quasirealistic microscopic Wigner potentials, the method is shown to be quantitatively rather accurate, producing in all cases almost exact results for the ground-state energies at the SUB(3) level of approximation.

yearjournalcountryeditionlanguage
1991-01-01
https://doi.org/10.1007/978-1-4615-3686-4_33