摘要：Establishing a robust link between microscopic structure and effective forces in active systems remains a fundamental challenge. Recently, Paul et al. [Phys. Rev. Lett. 129, 058001 (2022)] achieved a significant theoretical breakthrough by developing a framework based on active stress. This framework enables the computation of forces exerted by active particles on a tightly constrained probe. Nevertheless, the pronounced sensitivity of depletionlike forces in active baths to external constraints offers an opportunity to extend this theoretical framework. Using simulations, we systematically investigate this constraint dependence and uncover key discrepancies between theory and numerical results. By incorporating a constraint-dependent correction factor into the existing theory, our results align remarkably well with simulations across extensive parameters. Our findings advance the theoretical understanding of depletionlike forces in active matter and offer direct implications for experimental validation.

ISSN号：2470-0045

卷、期、页：卷: 112期: 1

发表日期：2025-07-21

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：PHYSICAL REVIEW E

参与作者：Yu, Xiaoting,Zhang, Xue,Tian, Yuxin,Zhang, Qun,Xu, Peicheng,Zheng, Ning,Yang, Mingcheng,Liu, Peng

第一作者：宁鲁慧

论文类型：期刊论文

论文概要：Yu, Xiaoting,Zhang, Xue,Tian, Yuxin,Zhang, Qun,Xu, Peicheng,宁鲁慧,Zheng, Ning,Yang, Mingcheng,Liu, Peng，Generalized relationship between effective forces and active particle microstructure，PHYSICAL REVIEW E，2025，卷: 112期: 1

论文题目：Generalized relationship between effective forces and active particle microstructure