2024-03-28T08:42:31Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1652482020-12-13T09:02:32Zcom_10261_34com_10261_5col_10261_287
http://hdl.handle.net/10261/165248
10.1103/PhysRevE.96.062126
344894
Disordered hyperuniformity in two-component nonadditive hard-disk plasmas
2017
artículo
Lomba, Enrique
rp13498
Weis, J.J.
Torquato, S.
2017
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.
Ministerio de Economía y Competitividad (España)
Physical Review E 96