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

abstract

• 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.

authors

• Saslow, Wayne

published proceedings

• PHYSICAL REVIEW B

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

publisher

• American Physical Society (APS)  Publisher

published in

• Physical Review B: Condensed Matter and Materials Physics  Journal

keywords

• 51 Physical Sciences
• 5108 Quantum Physics

Digital Object Identifier (DOI)

• 10.1103/PhysRevB.76.052503

URI

• https://hdl.handle.net/1969.1/182467

start page

• 052503

volume

• 76

issue

• 5

URL

• http://dx.doi.org/10.1103/physrevb.76.052503