The excited states of the Bosonic van der Waals clusters: A Monte Carlo study
Abstract
The computational physics methods of various processes have become very popular during the last several years. Our interest in his field is predominantly motivated by the expectation that it will be possible to perform a detailed comparison between experimental and theoretical results obtained in the study of clusters of a variety of sizes. Algebraic invariants are employed to deal efficiently with the many-body correlations. We study the applicability of the developed trial wave functions over some range of particle masses, from Ar to He and lighter. We compute the ground and excited states energies and various geometric sizes of small clusters as a function of a continuously varied mass parameter. For sufficiently small masses the cluster can no longer support a bound state, and we are interested in particular in the behavior of the clusters in the vicinity of the critical mass, i.e., the point at which the binding energy approaches zero. We show that the use of bosonic polynomials provides enough variational freedom to approximate ground and excited states of clusters of any mass. We discuss how the properties of clusters change with mass. ^
Subject Area
Physics, Molecular|Physics, Condensed Matter
Recommended Citation
Mark B Meierovich,
"The excited states of the Bosonic van der Waals clusters: A Monte Carlo study"
(1997).
Dissertations and Master's Theses (Campus Access).
Paper AAI9805258.
http://digitalcommons.uri.edu/dissertations/AAI9805258