Publication: He-4 Luttinger Liquid in Nanopores

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Title	He-4 Luttinger Liquid in Nanopores
Authors/Editors*	Adrian Del Maestro, Massimo Boninsegni, Ian Affleck
Where published*	Physical Review Letters
How published*	Journal
Year*	2011
Volume	106
Number
Pages	105303
Publisher	American Physical Soceity
Keywords
Link	http://prl.aps.org/abstract/PRL/v106/i10/e105303
Abstract	We study the low-temperature properties of a 4He 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.