Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations

Disordered 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 experimen...

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Main Authors: Lei, Qun-Li, Ciamarra, Massimo Pica, Ni, Ran
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2019
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Online Access:https://hdl.handle.net/10356/83644
http://hdl.handle.net/10220/47647
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-836442023-02-28T19:50:37Z Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations Lei, Qun-Li Ciamarra, Massimo Pica Ni, Ran School of Chemical and Biomedical Engineering School of Physical and Mathematical Sciences DRNTU::Engineering::Chemical engineering Mean Field Theory Microphase Separation Disordered 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. MOE (Min. of Education, S’pore) Published version 2019-02-12T08:55:08Z 2019-12-06T15:27:23Z 2019-02-12T08:55:08Z 2019-12-06T15:27:23Z 2019 2019 Journal Article Lei, 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.aau7423 https://hdl.handle.net/10356/83644 http://hdl.handle.net/10220/47647 10.1126/sciadv.aau7423 209430 en Science Advances © 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). 10 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Chemical engineering
Mean Field Theory
Microphase Separation
spellingShingle DRNTU::Engineering::Chemical engineering
Mean Field Theory
Microphase Separation
Lei, Qun-Li
Ciamarra, Massimo Pica
Ni, Ran
Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations
description Disordered 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.
author2 School of Chemical and Biomedical Engineering
author_facet School of Chemical and Biomedical Engineering
Lei, Qun-Li
Ciamarra, Massimo Pica
Ni, Ran
format Article
author Lei, Qun-Li
Ciamarra, Massimo Pica
Ni, Ran
author_sort Lei, Qun-Li
title Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations
title_short Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations
title_full Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations
title_fullStr Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations
title_full_unstemmed Nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations
title_sort nonequilibrium strongly hyperuniform fluids of circle active particles with large local density fluctuations
publishDate 2019
url https://hdl.handle.net/10356/83644
http://hdl.handle.net/10220/47647
_version_ 1759857245665886208