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Odd viscosity-induced Hall-like transport of an active chiral fluid.

ABSTRACT: Broken time-reversal and parity symmetries in active spinner fluids imply a nondissipative "odd viscosity," engendering phenomena unattainable in traditional passive or active fluids. Here we show that the odd viscosity itself can lead to a Hall-like transport when the active chiral fluid flows through a quenched matrix of obstacles, reminiscent of the anomalous Hall effect. The Hall-like velocity depends significantly on the spinner activity and longitudinal flow due to the interplay between odd viscosity and spinner-obstacle collisions. Our findings underscore the importance of odd viscosity in active chiral matter and elucidate its essential role in the anomalous Hall-like effect.

SUBMITTER: Lou X

PROVIDER: S-EPMC9586265 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature

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Odd viscosity-induced Hall-like transport of an active chiral fluid.

Lou Xin X Yang Qing Q Ding Yu Y Liu Peng P Chen Ke K Zhou Xin X Ye Fangfu F Podgornik Rudolf R Yang Mingcheng M

Proceedings of the National Academy of Sciences of the United States of America 20221010 42

Broken time-reversal and parity symmetries in active spinner fluids imply a nondissipative "odd viscosity," engendering phenomena unattainable in traditional passive or active fluids. Here we show that the odd viscosity itself can lead to a Hall-like transport when the active chiral fluid flows through a quenched matrix of obstacles, reminiscent of the anomalous Hall effect. The Hall-like velocity depends significantly on the spinner activity and longitudinal flow due to the interplay between od ...[more]

PMID: 36215475

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