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has been cited by the following article:

• TITLE: A Quantum Monte Carlo Study of Lanthanum

  AUTHORS: Nagat Elkahwagy, Atif Ismail, Sana Maize, Kamal Reyad Mahmoud

  KEYWORDS: Variational Monte Carlo; Diffusion Monte Carlo; Lanthanum; Hartree; Time Step

  JOURNAL NAME: World Journal of Condensed Matter Physics, Vol.3 No.4, November 19, 2013

  ABSTRACT: Pseudopotential calculations of the ground state energies of the Lanthanum neutral atom, first and second corresponding cations by means of the variational Monte Carlo (VMC) and the diffusion Monte Carlo (DMC) methods are performed. The first and the second ionization potentials have been calculated for Lanthanum. The obtained results are satisfactory and comparable with the available experimental data. Studying the DMC energy of the La atom at different time steps, gave us a time step error of the order 0.0019 Hartree for the smallest time step, τ = 0.0001 Hartree-1, and -0.0104 Hartree for the largest time step, τ = 0.01 Hartree-1. This paper demonstrates the ability of extending the QMC method for lanthanides and obtaining highly accurate results.