64 citations · 206 across the 8 of their papers we have counts for
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Exact ground state Monte Carlo method for Bosons without importance sampling
M. Rossi, M. Nava, L. Reatto +1
Generally ``exact'' Quantum Monte Carlo computations for the ground state of many Bosons make use of importance sampling. The importance sampling is based, either on a guiding func…
Zero-temperature study of vacancies in solid 4He
M. Rossi, E. Vitali, D. E. Galli +1
We are investigating the properties of vacancies in solid 4He with the exact zero temperature SPIGS method. Our aim is to study the possibility of phase--separation between vacanci…
Zero-point vacancies in quantum solids
M. Rossi, E. Vitali, D. E. Galli +1
A Jastrow wave function (JWF) and a shadow wave function (SWF) describe a quantum solid with Bose--Einstein condensate; i.e. a supersolid. It is known that both JWF and SWF describ…
Path Integral Ground State study of 2D solid 4He
E. Vitali, M. Rossi, F. Tramonto +2
We have studied a two-dimensional triangular commensurate crystal of 4He with the exact T=0 K Path Integral Ground State (PIGS) Monte Carlo method. We have projected onto the true…
Bounds for the Superfluid Fraction from Exact Quantum Monte Carlo Local Densities
D. E. Galli, L. Reatto, W. M. Saslow
For solid 4He and solid p-H2, using the flow-energy-minimizing one-body phase function and exact T=0 K Monte Carlo calculations of the local density, we have calculated the phase f…
Bose Einstein Condensation of incommensurate solid 4He
D. E. Galli, L. Reatto
It is pointed out that simulation computation of energy performed so far cannot be used to decide if the ground state of solid 4He has the number of lattice sites equal to the numb…