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Title: | Disordered hyperuniformity in two-component nonadditive hard-disk plasmas |
Authors: | Lomba, Enrique ![]() |
Issue Date: | 2017 |
Citation: | Physical Review E 96 (2017) |
Abstract: | We study the behavior of a classical two-component ionic plasma made up of nonadditive hard disks with additional logarithmic Coulomb interactions between them. Due to the Coulomb repulsion, long-wavelength total density fluctuations are suppressed and the system is globally hyperuniform. Short-range volume effects lead to phase separation or to heterocoordination for positive or negative nonadditivities, respectively. These effects compete with the hidden long-range order imposed by hyperuniformity. As a result, the critical behavior of the mixture is modified, with long-wavelength concentration fluctuations partially damped when the system is charged. It is also shown that the decrease of configurational entropy due to hyperuniformity originates from contributions beyond the two-particle level. Finally, despite global hyperuniformity, we show that in our system the spatial configuration associated with each component separately is not hyperuniform, i.e., the system is not >multihyperuniform. |
URI: | http://hdl.handle.net/10261/165248 |
DOI: | 10.1103/PhysRevE.96.062126 |
Identifiers: | doi: 10.1103/PhysRevE.96.062126 issn: 2470-0053 |
Appears in Collections: | (IQFR) Artículos |
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