Bounds for the superfluid fraction from exact quantum Monte Carlo local densities Academic Article uri icon


  • For solid He4 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 (r), we have calculated the phase function, the velocity profile, and upper bounds for the superfluid fraction fs. At the melting pressure for solid He4, we find that fs 0.20-0.21, about ten times what is observed. This strongly indicates that the theory for the calculation of these upper bounds needs substantial improvements. 2007 The American Physical Society.

published proceedings


author list (cited authors)

  • Galli, D. E., Reatto, L., & Saslow, W. M.

citation count

  • 10

complete list of authors

  • Galli, DE||Reatto, L||Saslow, WM

publication date

  • August 2007