https://doi.org/10.1140/epje/i2018-11739-y
Regular Article
Active dumbbells: Dynamics and morphology in the coexisting region
1
Dipartimento di Fisica, Università degli Studi di Bari and INFN, Sezione di Bari, via Amendola 173, I-70126, Bari, Italy
2
Sorbonne Université, Laboratoire de Physique Théorique et Hautes Energies, CNRS UMR 7589, 4 Place Jussieu, 75252, Paris Cedex 05, France
3
SISSA - Scuola Internazionale Superiore di Studi Avanzati, Via Bonomea 265, 34136, Trieste, Italy
4
Institute for Computational Molecular Science, College of Science and Technology, Temple University, 19122, Philadelphia, PA, USA
* e-mail: antonio.suma@gmail.com
Received:
30
April
2018
Accepted:
5
October
2018
Published online:
25
October
2018
With the help of molecular dynamics simulations we study an ensemble of active dumbbells in purely repulsive interaction. We derive the phase diagram in the density-activity plane and we characterise the various phases with liquid, hexatic and solid character. The analysis of the structural and dynamical properties, such as enstrophy, mean-square displacement, polarisation, and correlation functions, shows the continuous character of liquid and hexatic phases in the coexisting region when the activity is increased starting from the passive limit.
Key words: Topical issue: Flowing Matter, Problems and Applications
© EDP Sciences, SIF, Springer-Verlag GmbH Germany, part of Springer Nature, 2018
