Constraint dependence of average potential energy of a passive particle in an active bath

Ye Simin^{1, 2, †}, Liu Peng^{1, 2}, Wei Zixuan², Ye Fangfu^{1, 2, 3, 4, ‡}, Yang Mingcheng^{1, 2, §}, Chen Ke^{1, 2, 3, ¶}

The average potential energy U/k_BT as a function of external constraint kσs2/kBT for various particle sizes in experiment (a) and simulation (b). ρ is 0.050 for (a) and 0.30 for (b).