| Autor: |
Lomba, E., Weis, J. J., Torquato, S. |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Phys. Rev. E 96, 062126 (2017) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevE.96.062126 |
| Popis: |
We study the behavior of a two-component plasma made up of non-additive hard disks with a logarithmic Coulomb interaction. 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 hetero-coordination for positive or negative non-additivities, 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." |
| Databáze: |
arXiv |
| Externí odkaz: |
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