145 citations · 290 across the 11 of their papers we have counts for
11 papers
Ca impurity in small mixed He-He clusters
R. Guardiola, J. Navarro, D. Mateo +1
The structure of small mixed helium clusters doped with one calcium atom has been determined within the diffusion Monte Carlo framework. The results show that the calcium atom sits…
Excitation levels and magic numbers of small para-Hydrogen clusters (N)
R. Guardiola, J. Navarro
The excitation energies of parahydrogen clusters have been systematically calculated by the diffusion Monte Carlo technique in steps of one molecule from 3 to 40 molecules. These c…
The spectra of mixed He-He droplets
S. Fantoni, R. Guardiola, J. Navarro +1
The diffusion Monte Carlo technique is used to calculate and analyze the excitation spectrum of He atoms bound to a cluster of He atoms, by using a previously determined op…
Minimal mass-size of a stable 3He cluster
R. Guardiola, J. Navarro
The minimal number of 3He atoms required to form a bound cluster has been estimated by means of a Diffusion Monte Carlo procedure within the fixed-node approximation. Several impor…
Excitation spectra of a 3He impurity on 4He clusters
S. Fantoni, R. Guardiola, J. Navarro
The diffusion Monte Carlo technique is used to calculate and analyze the excitation spectrum of a single 3He atom bound to a cluster with N 4He atoms, with the aim of establishing…
High-quality variational wave functions for small 4He clusters
R. Guardiola, M. Portesi, J. Navarro
We report a variational calculation of ground state energies and radii for 4He_N droplets (3 \leq N \leq 40), using the atom-atom interaction HFD-B(HE). The trial wave function has…