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Effective Temperature in Active Brownian Particles

Laboratoire de Physique Théorique et Hautes Energies, Sorbonne Université, CNRS UMR 7589, 4 Place Jussieu, 75252 Paris Cedex 05, France

E-mail Address: leticia@lpthe.jussieu.fr

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Giuseppe Gonnella

Dipartimento di Fisica, Università degli Studi di Bari and INFN, Sezione di Bari, via Amendola 173, Bari, I-70126, Italy

E-mail Address: gonnella@ba.infn.it

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Isabella Petrelli

Dipartimento di Fisica, Università degli Studi di Bari and INFN, Sezione di Bari, via Amendola 173, Bari, I-70126, Italy

E-mail Address: isabella.petrelli@uniba.it

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https://doi.org/10.1142/S021947751940008XCited by:28 (Source: Crossref)

Abstract

In this paper, we perform a numerical analysis of the effective temperature extracted from the deviations from the fluctuation dissipation theorem in a system of active Brownian spherical particles with excluded volume interactions. We show that, in the low density homogeneous phase at fixed Péclet number, the effective temperature decreases when the density of the system is increased. We compare this trend to the one found in the literature with simulations of other active models.

Communicated by Igor Khovanov

Keywords:

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