| Popis: |
Few-body exact ground-state estimates are obtained by the di↵usion Monte Carlo method and pure estimators [1]. Pure-estimator- algorithm is optimized for usage of large number of walkers and large blocks of steps. Relationships between $(N+1)$- and $(N)$-body structural characteristics are analyzed, for model and realistic systems consisting of light atoms and alkali and alkaline earth isotopes [2-5]. Among structural properties we emphasize helium dimers and trimers which can be compared [6] with the most recent experimental results [7-9] obtained by Coulomb explosion imaging of di↵racted clusters, and helium- alkali pentamers [10] which already indicate behavior noticed in nanodroplets. References: J. Casulleras and J. Boronat, Phys. Rev. B 52, 3654 (1995). P. Stipanovi´c, L. Vranjeˇs Marki´c, I. Beˇsli ´c, J. Boronat, Phys. Rev. Lett. 113, 253401 (2014). P. Stipanovi´c, L. Vranjeˇs Marki´c, D. Zari´c, J.Boronat, J. Chem. Phys. 146, 014305 (2017). P. Stipanovi´c, L. Vranjeˇs Marki´c, J. Phys. B - At. Mol. Opt. Phys. 51, 155101 (2018). P. Stipanovi´c, L. Vranjeˇs Marki´c, A. Gudyma, J. Boronat, Sci. Rep. 9, 6289 (2019). P. Stipanovi´c, L. Vranjeˇs Marki´c, J. Boronat, J. Phys. B: At. Mol. Opt. Phys. 49, 185101 (2016). J. Voigtsberger et al., Nature Communications 5, 5765 (2014). M. Kunitski et al., Science 348, 551 (2015). S. Zeller et al., PNAS 113, 14651 (2016). P. Stipanovi´c, L. Vranjeˇs Marki´c, Few-Body Syst. 59, 45 (2018). |
