dc.contributor.authorLei, Qun-Li
dc.contributor.authorCiamarra, Massimo Pica
dc.contributor.authorNi, Ran
dc.identifier.citationLei, Q.- L., Ciamarra, M. P., & Ni, R. (2019). Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations. Science Advances, 5(1), eaau7423-. doi:10.1126/sciadv.aau7423en_US
dc.description.abstractDisordered hyperuniform structures are an exotic state of matter having vanishing long-wavelength density fluctuations similar to perfect crystals but without long-range order. Although its importance in materials science has been brought to the fore in past decades, the rational design of experimentally realizable disordered strongly hyperuniform microstructures remains challenging. Here we find a new type of nonequilibrium fluid with strong hyperuniformity in two-dimensional systems of chiral active particles, where particles perform independent circular motions of the radius R with the same handedness. This new hyperuniform fluid features a special length scale, i.e., the diameter of the circular trajectory of particles, below which large density fluctuations are observed. By developing a dynamic mean-field theory, we show that the large local density fluctuations can be explained as a motility-induced microphase separation, while the Fickian diffusion at large length scales and local center-of-mass-conserved noises are responsible for the global hyperuniformity.en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.format.extent10 p.en_US
dc.relation.ispartofseriesScience Advancesen_US
dc.rights© 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).en_US
dc.subjectMean Field Theoryen_US
dc.subjectMicrophase Separationen_US
dc.subjectDRNTU::Engineering::Chemical engineeringen_US
dc.titleNonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuationsen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionPublished versionen_US

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