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Structure, rotational dynamics, and superfluidity of small OCS-doped He clusters
Saverio Moroni, Antonio Sarsa, Stefano Fantoni +2
The structural and dynamical properties of OCS molecules solvated in Helium clusters are studied using reptation quantum Monte Carlo, for cluster sizes n=3-20 He atoms. Computer si…
Number--conserving model for boson pairing
S. Fantoni, T. M. Nguyen, A. Sarsa +1
An independent pair ansatz is developed for the many body wavefunction of dilute Bose systems. The pair correlation is optimized by minimizing the expectation value of the full ham…
Momentum distribution of liquid helium
Saverio Moroni, Gaetano Senatore, Stefano Fantoni
We have obtained the one--body density matrix and the momentum distribution of liquid He at K from Diffusion Monte Carlo (DMC) simulations, using trial function…
Variational Calculations for He Impurities on He Droplets
A. Belić, F. Dalfovo, S. Fantoni +1
Variational Monte Carlo method is used to calculate ground state properties of He droplets, containing 70, 112, 168, 240, 330, and 728 particles. The resulting particle and kin…