Quantum fluids in nanopores
Nathan M. Urban, Milton W. Cole
Abstract
We describe calculations of the properties of quantum fluids inside nanotubes of various sizes. Very small radius (R) pores confine the gases to a line, so that a one-dimensional (1D) approximation is applicable; the low temperature behavior of 1D 4He is discussed. Somewhat larger pores permit the particles to move off axis, resulting eventually in a transition to a cylindrical shell phase--a thin film near the tube wall; we explored this behavior for H2. At even larger R 1 nm, both the shell phase and an axial phase are present. Results showing strong binding of cylindrical liquids 4He and 3He are discussed.
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