Naslov
Ground-state properties of weakly bound helium-alkali trimers

Autori
Stipanović, Petar ; Vranješ Markić, Leandra ; Zarić, Darko ; Boronat, Jordi

Izvornik
The Journal of chemical physics (0021-9606) 146 (2017), 1; 014305, 7

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
helium-alkali trimers ; structural properties ; quantum halo states ; quantum Monte Carlo

Sažetak
Weakly bound triatomic molecules consisting of two helium atoms and one alkali metal atom are studied by means of the diffusion Monte Carlo method. We determined the stability of 4He2-A, 4He-3He-A, and 3He2-A, where A is one of the alkali atoms Li, Na, K, Rb, or Cs. Some of the trimers with 3He are predicted to be self-bound for the first time, but this is observed to be dependent on the He–A interaction potential model. In addition to the ground-state energy of the trimers, we determined their density, radial, and angular distributions. Many of them are spatially very extended, which qualifies them as quantum halo states.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA