Gas-Solid Phase Separation of Active Brownian Particles Under Confinement of Hard Walls.

ABSTRACT: By means of computer simulations, we have investigated the gas-solid phase separation of active Brownian particles (ABPs) under the confinement of two hard walls, distinct from the gas-liquid phase separation typically seen in bulk systems. Our results show that the distance (D) between the hard walls plays a crucial role. Increasing D may facilitate the formation of gas-solid phase separation perpendicular to the hard walls, while decreasing D may suppress such phase separation. Interestingly, when D is decreased further and the lateral system size is increased accordingly to maintain a constant volume, a new reoriented phase separation pattern in the system emerges, i.e., the gas-solid phase coexistence can be found in those layers parallel to the inner surfaces of two hard walls. These

SUBMITTER: Zhang H 

PROVIDER: S-EPMC12655652 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature