Spontaneous Symmetry Breaking in Superfluid Helium-4
Abstract
We derive an analytical expression for a critical temperature of spontaneous symmetry breaking in a repulsive hard-core interacting Bose system. We show that the critical temperature of spontaneous symmetry breaking in a hard-core interacting Bose system is determined by the three physical parameters: the density of Bose liquid at absolute zero (rho_0), the mass (m) and the hard sphere diameter (sigma) of a boson. The formula that we have derived is Tc = rho_0 pi hbar^2 sigma / m^2 kB. We report Tc of liquid helium-4 is 2.194 K, which is significantly close to the lambda temperature of 2.1768 K. The deviation between the predicted and experimental values of the lambda temperature is less than 1%.
Keywords
Cite
@article{arxiv.cond-mat/0701365,
title = {Spontaneous Symmetry Breaking in Superfluid Helium-4},
author = {Junpei Harada},
journal= {arXiv preprint arXiv:cond-mat/0701365},
year = {2009}
}
Comments
4 pages, 5 figures; v2 typos corrected, a reference added