Onsager?s Variational Principle for Nonreciprocal Systems with Odd Elasticity

被引：8

作者：

Lin, Li-Shing ^{[1
]}

Yasuda, Kento ^{[2
]}

Ishimoto, Kenta ^{[2
]}

Hosaka, Yuto ^{[3
]}

Komura, Shigeyuki ^{[1
,4
,5
]}

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Sci, Dept Chem, Hachioji, Tokyo 1920397, Japan

[2] Kyoto Univ, Res Inst Math Sci, Kyoto 6068502, Japan

[3] Max Planck Inst Dynam & Selforg MPI DS, Fassberg 17, D-37077 Gottingen, Germany

[4] Univ Chinese Acad Sci, Wenzhou Inst, Wenzhou 325001, Zhejiang, Peoples R China

[5] Oujiang Lab, Wenzhou 325000, Zhejiang, Peoples R China

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2023年 / 92卷 / 03期

基金：

日本学术振兴会; 日本科学技术振兴机构; 中国国家自然科学基金;

关键词：

SOFT;

D O I：

10.7566/JPSJ.92.033001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using Onsager's variational principle, we derive dynamical equations for a nonequilibrium active system with odd elasticity. The elimination of the extra variable that is coupled to the nonequilibrium driving force leads to the nonreciprocal set of equations for the material coordinates. The obtained nonreciprocal equations manifest the physical origin of the odd elastic moduli that are proportional to the nonequilibrium force and the friction coefficients. Our approach offers a systematic and consistent way to derive nonreciprocal equations for active matter in which the time -reversal symmetry is broken.

引用

页数：4

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