6533b851fe1ef96bd12a8cf3
RESEARCH PRODUCT
Excitation spectra of aHe3impurity onHe4clusters
Stefano FantoniJesús NavarroR. Guardiolasubject
PhysicsAngular momentumHelium-4AtomPhysics::Atomic and Molecular ClustersCluster (physics)Diffusion Monte CarloFermionAtomic physicsDiatomic moleculeAtomic and Molecular Physics and OpticsExcitationdescription
The diffusion Monte Carlo technique is used to calculate and analyze the excitation spectrum of a single $^{3}\mathrm{He}$ atom bound to a cluster with $N$ $^{4}\mathrm{He}$ atoms, with the aim of establishing the most adequate filling ordering of single-fermion orbits to the mixed clusters with a large number of $^{3}\mathrm{He}$ 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 $N$.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-08-27 | Physical Review A |