@article{ISI:000274936300005,
 abstract = {We carry out a systematic construction of the coarse-grained dynamical
equation of motion for the orientational order parameter for a
two-dimensional active nematic, that is a nonequilibrium steady state
with uniaxial, apolar orientational order. Using the dynamical
renormalization group, we show that the leading nonlinearities in this
equation are marginally irrelevant. We discover a special limit of
parameters in which the equation of motion for the angle field bears a
close relation to the 2d stochastic Burgers equation. We find
nevertheless that, unlike for the Burgers problem, the nonlinearity is
marginally irrelevant even in this special limit, as a result of a
hidden fluctuation-dissipation relation. 2d active nematics therefore
have quasi-long-range order, just like their equilibrium counterparts.},
 article-number = {P02003},
 author = {Mishra, Shradha and Simha, R. Aditi and Ramaswamy, Sriram},
 doi = {10.1088/1742-5468/2010/02/P02003},
 issn = {1742-5468},
 journal = {JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT},
 month = {FEB},
 times-cited = {20},
 title = {A dynamic renormalization group study of active nematics},
 unique-id = {ISI:000274936300005},
 year = {2010}
}