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Density fluctuations of hard-sphere fluids in narrow confinement

Nygård, Kim ; Sarman, Sten ; Hyltegren, Kristin ; Chodankar, Shirish ; Perret, Edith ; Buitenhuis, Johan ; Veen, J. Friso van der ; Kjellander, Roland

In: Physical Review X, 2016, vol. 6, no. 1, p. 11014

Spatial confinement induces microscopic ordering of fluids, which in turn alters many of their dynamic and thermodynamic properties. However, the isothermal compressibility has hitherto been largely overlooked in the literature, despite its obvious connection to the underlying microscopic structure and density fluctuations in confined geometries. Here, we address this issue by probing density...