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arXiv · 1101.2206

Helium-4 Luttinger liquids in nanopores

Adrian Del Maestro·Massimo Boninsegni·Ian Affleck
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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.

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Adrian Del Maestro, Massimo Boninsegni, Ian Affleck. 2011-06-19. Helium-4 Luttinger liquids in nanopores. https://doi.org/10.1103/physrevlett.106.105303

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