@article{ISI:000452045600001,
 abstract = {We present in detail a Langevin formalism for constructing stochastic
dynamical equations for active-matter systems coupled to a thermal bath.
We apply the formalism to clarify issues of principle regarding the
sources and signatures of nonequilibrium behaviour in a variety of polar
and apolar single-particle systems and polar flocks. We show that
distance from thermal equilibrium depends on how time-reversal is
implemented and hence on the reference equilibrium state. We predict
characteristic forms for the frequency-resolved entropy production for
an active polar particle in a harmonic potential, which should be
testable in experiments.},
 article-number = {123201},
 author = {Dadhichi, Lokrshi Prawar and Maitra, Ananyo and Ramaswamy, Sriram},
 doi = {10.1088/1742-5468/aae852},
 issn = {1742-5468},
 journal = {JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT},
 month = {DEC},
 orcid-numbers = {Dadhichi, Lokrshi Prawar/0000-0002-7883-131X
Maitra, Ananyo/0000-0003-3701-6981},
 times-cited = {9},
 title = {Origins and diagnostics of the nonequilibrium character of active
systems},
 unique-id = {ISI:000452045600001},
 year = {2018}
}