2001/06/30 by A. M. Ettouhami · 1 citation
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum, superfluid, helium dynamics #cond-mat.stat-mech #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.65.134504
published as Phys. Rev. B 65, 134504 (2002) · 15 RevTex pages, 2 figures; submitted to Phys. Rev. B
arxiv created 2001/12/18 · openalex publication_date 2002/03/19 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We construct, within the framework of classical statistical mechanics, a mean-field theory of dilute flux-line liquids which goes beyond linear hydrodynamics. Within our approach, we find that interactions between vortices produce a massive term in the Hamiltonian of the internal modes of the flux lines which confines their transverse fluctuations. This suggests that the flux-line liquid, at least in the low density limit considered in this paper, might very well be in a weakly entangled state, where the average width 〈u2〉1/2 of flux lines can be much larger than the average distance between the lines but does not diverge with the sample thickness L. Consequences on the physics of flux-line liquids are briefly discussed.