6533b826fe1ef96bd1284474

RESEARCH PRODUCT

Excitation spectra of a He-3 impurity on He-4 clusters

S. FantoniRafael Guardiola BarcenaJesús Navarro Faus

subject

Physics::Atomic and Molecular ClustersFísica

description

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 the most adequate filling ordering of single-fermion orbits to the mixed clusters with a large number of 3He atoms. The resulting ordering looks like the rotational spectrum of a diatomic molecule, being classified only by the angular momentum of the level, although vibrational-like excitations appear at higher energies for sufficiently large N.

10.1103/physreva.70.023206http://hdl.handle.net/10550/37160