22 citations · 132 across the 15 of their papers we have counts for
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Mean-field theory of orientational ordering in rigid rotor models with identical atoms: spin conversion and thermal equilibration
Balazs Hetenyi
In coupled rotor models which describe identical rotating nuclei the nuclear spin states restrict the possible angular momenta of each molecule. There are two mean-field approaches…
2D and 3D quantum rotors in a crystal field: critical points, metastability, and reentrance
Yuri A. Freiman, B. Hetenyi, S. M. Tretyak
An overview of results of models of coupled quantum rotors is presented. We focus on rotors with dipolar and quadrupolar potentials in two and three dimensions, potentials which co…
Theoretical evidence for a reentrant phase diagram in {\em ortho-para} mixtures of solid H
Balazs Hetenyi, Sandro Scandolo, Erio Tosatti
We develop a multi order parameter mean-field formalism for systems of coupled quantum rotors. The scheme is developed to account for systems where {\it ortho-para} distinction is…
Quantum Monte Carlo Algorithm Based on Two-Body Density Functional Theory for Fermionic Many-Body Systems: Application to 3He
Balazs Hetenyi, L. Brualla, S. Fantoni
We construct a quantum Monte Carlo algorithm for interacting fermions using the two-body density as the fundamental quantity. The central idea is mapping the interacting fermionic…