201 citations · 226 across the 34 of their papers we have counts for
35 papers
Power Series for the Quantum Statistical Mechanics Probability with Results for the Second Virial Coefficient of Helium
Phil Attard
A power series for the Wigner-Kirkwood pair commutation function for quantum statistical mechanics in classical phase space is given with terms automatically generated by recursion…
Gaussian Reformulation of the Feynman Path Integral for Quantum Statistical Mechanics with Results for the Second Virial Coefficient of He
Phil Attard
The Feynman path integral for quantum statistical mechanics is reformulated as Gaussian sampling of the neighborhood of each position configuration. The variance and mean are obtai…
The Paradox of Bose-Einstein Condensation
Phil Attard
The paradox of Bose-Einstein condensation is that phenomena such as the -transition heat capacity and superfluid flow are macroscopic, whereas the occupancy of the ground state…
Quantum Stochastic Molecular Dynamics Simulations of the Viscosity of Superfluid Helium
Phil Attard
Decoherent quantum equations of motion are derived that yield the trajectory of an open quantum system. The viscosity of superfluid Lennard-Jones helium-4 is obtained with a quantu…
Further On the Fountain Effect in Superfluid Helium
Phil Attard
In the previous paper (Attard 2022d)on the fountain pressure in superfluid helium, it was shown that the experimentally confirmed expression of H. London (1939) was thermodynamical…
On the Fountain Effect in Superfluid Helium
Phil Attard
The origin of the fountain pressure that arises from a small temperature difference in superfluid helium is analyzed. The osmotic pressure explanation due to Tisza (1938), based on…