We present path integral Monte Carlo (PIMC) calculations of the superfluid fraction, ρS/ρ, and the one-body density matrix (OBDM) [Bose-Einstein condensation (BEC)] of liquid He confined in… (More)

We report results for the ground-state energy and structural properties of small (4)He-T↓ clusters consisting of up to four T↓ and eight (4)He atoms. These results have been obtained using very… (More)

I. Bešlić,1 L. Vranješ Markić,1,2 and J. Boronat3 1Faculty of Science, University of Split, HR-21000 Split, Croatia 2Institut für Theoretische Physik, Johannes Kepler Universität, A 4040 Linz,… (More)

This work expands recent investigations in the field of spin-polarized tritium (T downward arrow) clusters. We report the results for the ground-state energy and structural properties of large T… (More)

The ground-state properties of spin polarized hydrogen H↓ in two dimensions (2D) are obtained by means of diffusion Monte Carlo calculations. Using the most accurate to date ab initio H↓–H↓… (More)

The ground state of weakly bound dimers and trimers with a radius extending well into the classically forbidden region is explored, with the goal to test the predicted universality of quantum halo… (More)

The experimental realization of a thin layer of spin-polarized hydrogen H↓ adsorbed on top of the surface of superfluid (4)He provides one of the best examples of a stable, nearly two-dimensional… (More)

Over the years many He-He interaction potentials have been developed, some very sophisticated, including various corrections beyond Born-Oppenheimer approximation. Most of them were used to predict… (More)