Naslov
Universality of atomic quantum halo clusters

Autori
Stipanović, Petar ; Vranješ Markić, Leandra ; Bešlić, Ivana ; Boronat, Jordi

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
MBT17 XVII. International conference on recent progress in many-body theories Book of abstracts / - Rostock, 2013, 56-56

Skup
MBT17 XVII. International conference on recent progress in many-body theories

Mjesto i datum
Rostock, Njemačka, 08.09.2013. - 13.09.2013

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
halo stanja; mali atomski klasteri; energija osnovnog stanja; univerzalnosti
(halo states; small atomic clusters; ground-state energy; universality)

Sažetak
The results of the recent research in quantum halo systems will be presented. We have explored the ground states of the weakly bound small clusters, consisting of two to four spin-polarized (sp)D, spT, He-3 and He-4 atoms, with a radius extending well into the classically forbidden regions. Calculations of the size and binding energy have been performed using variational and diffusion Monte Carlo methods. Using dimensionless measures of the binding energy and cluster size, studied atomic clusters are compared to other known halos in different fields of physics, as well as to scaling relations obtained using model potentials. In addition, the interparticle interaction potentials with different shape but same scattering length and effective range are used in order to show that universal low-energy properties do not depend on the details of the interactions at short distances. Furthermore, the shape of trimers is explored using angle-angle distribution function.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA