Microscopic theory of heat capacity of liquid helium-4 for temperatures above the critical point

2011/10/18 by I. O. Vakarchuk, Vakarchuk, I. O., V. S. Pastukhov +3
Physics and Astronomy · #FOS: Physical sciences #Quantum Gases (cond-mat.quant-gas) #cond-mat.quant-gas

paper · pdf · doi:10.48550/arxiv.1110.3941

15 pages, 2 figures

arxiv created 2011/10/18 · arxiv updated 2011/10/19

Abstract

In this paper, with the corresponding formula for internal energy obtained in Ref. [J. Phys. Stud. \bf 11, 259 (2007)], combined with a simple calculation of the effective mass of interacting Bose particles, the behavior of the heat capacity of liquid ⁴He is analyzed numerically for the entire temperature range. The results agree quite well with experimental data.

Related

• Basic ideas of microscopic physics of liquid helium-4 and λ-transition to a coherent state
• A refined Bogoliubov-Huang approach to helium II thermodynamics
• Internal energy of many-boson system with three- and four-particle direct correlations taken into account
• The Theory of Superfluidity of ⁴Helium
• Microscopic view of heat capacity of matter: solid, liquid, and gas