150 citations · 322 across the 7 of their papers we have counts for
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Ring exchanges and the supersolid phase of 4He
D. M. Ceperley, B. Bernu
Using Path Integral Monte Carlo we calculate exchange frequencies in bulk hcp 4He as atoms undergo ring exchange. We fit the frequencies to a lattice model and examine whether such…
Accurate, efficient and simple forces with Quantum Monte Carlo methods
Simone Chiesa, David Ceperley, Shiwei Zhang
Computation of ionic forces using quantum Monte Carlo methods has long been a challenge. We introduce a simple procedure, based on known properties of physical electronic densities…
Coupled Electron Ion Monte Carlo Calculations of Dense Metallic Hydrogen
Carlo Pierleoni, David M. Ceperley, Markus Holzmann
We present a new Monte Carlo method which couples Path Integral for finite temperature protons with Quantum Monte Carlo for ground state electrons, and we apply it to metallic hydr…
The Magnetic Ordering of the 3d Wigner Crystal
Ladir Candido, B. Bernu, D. M. Ceperley
Using Path Integral Monte Carlo, we have calculated exchange frequencies as electrons undergo ring exchanges of 2, 3 and 4 electrons in a ``clean'' 3d Wigner crystal (bcc lattice)…