Helium-4 Luttinger liquids in nanopores
Abstract
We study the low temperature properties of a helium-4 fluid confined in nanopores, using large-scale Quantum Monte Carlo simulations with realistic He-He and He-pore interactions. In the narrow-pore limit, the system can be described by the quantum hydrodynamic theory known as Luttinger liquid theory with a large Luttinger parameter, corresponding to the dominance of solid tendencies and strong susceptibility to pinning by a periodic or random potential from the pore walls. On the other hand, for wider pores, the central region appears to behave like a Luttinger liquid with a smaller Luttinger parameter, and may be protected from pinning by the wall potential, offering the possibility of experimental detection of a Luttinger liquid.
Cite
@article{arxiv.1101.2206,
title = {Helium-4 Luttinger liquids in nanopores},
author = {Adrian Del Maestro and Massimo Boninsegni and Ian Affleck},
journal= {arXiv preprint arXiv:1101.2206},
year = {2011}
}
Comments
4 pages, 3 figures; revised version fixes a typo in the sign of the chemical potential on page 2 and a mislabeling of the values of K assigned to relevant disorder and periodic potentials on page 4