中国物理B ›› 2025, Vol. 34 ›› Issue (8): 80506-080506.doi: 10.1088/1674-1056/ade06f

所属专题： SPECIAL TOPIC — A celebration of the 90th Anniversary of the Birth of Bolin Hao

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Enhancing phase separation of double-chiral particles by regulating inter-chiral frustration

Yi-Chen Lu(陆羿辰)1,2,†, Wan-Rou Cai(蔡婉柔)1,3,†, Meng-Chu Wang(王梦楚)1,3, Ya-Li Liu(刘雅莉)1,3, Tong Zhu(朱童)1,3, Yi-Lin Zhou(周怡琳)1,3, Tian-Chen Yu(余天晨)1,3, Yun-Xuan Ji(纪蕴轩)1,3, Ming-Qian Ao(敖明茜)1,3, Chen-Lu Li(李晨璐)1,3, Cheng-Xu Yan(颜乘旭)1,3, and Zhi-Gang Zheng(郑志刚)1,3,‡   

  1. 1 Institute of Systems Science, Huaqiao University, Xiamen 361021, China;
    2 School of Mathematical Sciences, Huaqiao University, Quanzhou 362021, China;
    3 College of Information Science and Technology, Huaqiao University, Xiamen 361021, China
  • 收稿日期:2025-04-11 修回日期:2025-05-10 接受日期:2025-06-04 出版日期:2025-07-17 发布日期:2025-07-17
  • 通讯作者: Zhi-Gang Zheng E-mail:zgzheng@hqu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12375031 and 11875135), China National University Student Innovation and Entrepreneurship (Grant No. 202410385040), and Fujian University Alliance of Physics Discipline Training Program of Innovation for Undergraduates Development Program, China.

Enhancing phase separation of double-chiral particles by regulating inter-chiral frustration

Yi-Chen Lu(陆羿辰)1,2,†, Wan-Rou Cai(蔡婉柔)1,3,†, Meng-Chu Wang(王梦楚)1,3, Ya-Li Liu(刘雅莉)1,3, Tong Zhu(朱童)1,3, Yi-Lin Zhou(周怡琳)1,3, Tian-Chen Yu(余天晨)1,3, Yun-Xuan Ji(纪蕴轩)1,3, Ming-Qian Ao(敖明茜)1,3, Chen-Lu Li(李晨璐)1,3, Cheng-Xu Yan(颜乘旭)1,3, and Zhi-Gang Zheng(郑志刚)1,3,‡   

  1. 1 Institute of Systems Science, Huaqiao University, Xiamen 361021, China;
    2 School of Mathematical Sciences, Huaqiao University, Quanzhou 362021, China;
    3 College of Information Science and Technology, Huaqiao University, Xiamen 361021, China
  • Received:2025-04-11 Revised:2025-05-10 Accepted:2025-06-04 Online:2025-07-17 Published:2025-07-17
  • Contact: Zhi-Gang Zheng E-mail:zgzheng@hqu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12375031 and 11875135), China National University Student Innovation and Entrepreneurship (Grant No. 202410385040), and Fujian University Alliance of Physics Discipline Training Program of Innovation for Undergraduates Development Program, China.

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摘要： Chiral active matter exhibits a variety of collective behaviors, including phase separation, which is governed by the rule of "like chiralities attract, while opposite chiralities repel". In this work, we investigate the chiral demixing strategy of double-chiral partial mixture with inter-chiral frustration. We find that the inter-chiral frustration can significantly enhance the chiral demixing of active particles with different chiralities, both during the transient and in the steady state, not only accelerating the progress, but also improving the degree of phase separation. This phenomenon is reminiscent of the phase separation of binary mixtures in condensed matter physics, where the inter-chiral frustration can play a crucial role in the formation of the phase-separated states. We construct the phase diagram of the system and discuss the critical frustration for the enhancement of chiral demixing. Our work presents the first systematic investigation of inter-chiral frustration in self-propelled chiral active matter, filling a critical gap in the field.

关键词: chiral active matter, demixing, phase separation, frustration

Abstract: Chiral active matter exhibits a variety of collective behaviors, including phase separation, which is governed by the rule of "like chiralities attract, while opposite chiralities repel". In this work, we investigate the chiral demixing strategy of double-chiral partial mixture with inter-chiral frustration. We find that the inter-chiral frustration can significantly enhance the chiral demixing of active particles with different chiralities, both during the transient and in the steady state, not only accelerating the progress, but also improving the degree of phase separation. This phenomenon is reminiscent of the phase separation of binary mixtures in condensed matter physics, where the inter-chiral frustration can play a crucial role in the formation of the phase-separated states. We construct the phase diagram of the system and discuss the critical frustration for the enhancement of chiral demixing. Our work presents the first systematic investigation of inter-chiral frustration in self-propelled chiral active matter, filling a critical gap in the field.

Key words: chiral active matter, demixing, phase separation, frustration

中图分类号:  (Nonlinear dynamics and chaos)

  • 05.45.-a
89.75.Kd (Patterns) 11.30.Rd (Chiral symmetries)