Search for bound and quasibound states in the spin-polarized atomic tritium trimer

Salci, Moses; Levin, S. B.; Elander, Nils

doi:10.1103/physreva.69.044501

Cited by 15 publications

(25 citation statements)

References 29 publications

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“…In addition, it was also shown that the smallest T↓ cluster is a trimer, i.e., ͑T↓͒ 3 ; negative ground-state energy was not obtained for the dimer ͑T↓͒ 2 , which means that T↓ trimer is an example of Borromean or halo state. The same conclusion for ͑T↓͒ 3 , obtained with the finite element method, was reported by Salci et al 11 Because of evident resemblance of bosonic T↓ and 4 He atoms, Blume et al 1 also compared general properties of both types of clusters. They showed that common attributes of T↓ clusters are weaker binding and greater interparticle distances between atoms, in comparison with 4 He clusters having the same number of atoms.…”

Section: Introductionsupporting

confidence: 73%

Quantum Monte Carlo study of large spin-polarized tritium clusters

Bešlić

Markić

Boronat

2009

The Journal of Chemical Physics

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This work expands recent investigations in the field of spin-polarized tritium ͑T↓͒ clusters. We report the results for the ground-state energy and structural properties of large T↓ clusters consisting of up to 320 atoms. All calculations have been performed with variational and diffusion Monte Carlo methods, using an accurate ab initio interatomic potential. Our results for N Յ 40 are in good agreement with results obtained by other groups. Using a liquid-drop expression for the energy per particle, we estimate the liquid equilibrium density, which is in good agreement with our recently obtained results for bulk T↓. In addition, the calculations of the energy for large clusters have allowed for an estimation of the surface tension. From the mean-square radius of the drop, determined using unbiased estimators, we determine the dependence of the radii on the size of the cluster and extract the unit radius of the T↓ liquid.

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Section: Introductionsupporting

confidence: 73%

Quantum Monte Carlo study of large spin-polarized tritium clusters

Bešlić

Markić

Boronat

2009

The Journal of Chemical Physics

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“…This kind of investigation is related to people's interests both in finding halo states or Efimov states of realistic atomic or molecular systems [1][2][3][4][5][6] and the creation of Bose-Einstein condensate in various aggregates [7,8].…”

Section: Introductionmentioning

confidence: 99%

Weakly bound states of the He-He-Ca triatomic system

Gou

2012

Phys. Rev. A

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We investigate for the existence of the weakly bound He-He-Ca molecules. By employing the best empirical interaction between each pair of particles, the Schrödinger equation for the triatomic system is solved using hyperspherical coordinates in the adiabatic approximation. The bound states are found for each of the 3 He-3 He-40 Ca, 3 He-4 He-40 Ca, and 4 He-4 He-40 Ca trimers, respectively. The binding energies of such molecules are estimated. We discuss the features of the channel functions associated with the hyperspherical potential curves of each system to obtain insight into the geometry of the molecules.

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“…One is due to the creation of Bose-Einstein condensates in various aggregates [1,2]. The other is related to an interest in finding the halo states or Efimov states of realistic atomic or molecular systems [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%