Abstract
A variational statistical mechanics of boson quantum fluids such as He4 is developed as a natural generalization of the Jastrow Euler-Lagrange method which has been successfully applied to the ground-state problem. The results include a quantitative description of the liquid-gas portion of the phase diagram, including the corresponding critical point and spinodal line. Also calculated is the temperature dependence of the liquid structure function and phonon-roton spectrum within the class of trial density matrices explored in this work.
Original language | English (US) |
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Pages (from-to) | 7562-7574 |
Number of pages | 13 |
Journal | Physical Review B |
Volume | 33 |
Issue number | 11 |
DOIs | |
State | Published - 1986 |