Nonequilibrium phase transitions, fluctuations and correlations in an active contractile polar fluid
Gowrishankar, Kripa and Rao, Madan Nonequilibrium phase transitions, fluctuations and correlations in an active contractile polar fluid. Soft Matter. pp. 1-9. ISSN 1744-6848
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Abstract
We study the patterning, fluctuations and correlations of an active polar fluid consisting of contractile polar filaments on a two dimensional substrate, using a hydrodynamic description. The steady states generically consist of arrays of inward pointing asters and show a continuous transition from a moving lamellar phase, a moving aster street to a stationary aster lattice with no net polar order. We next study the effect of a spatio-temporal athermal noise, parametrized by an active temperature TA, on the stability of the ordered phases. In contrast to its equilibrium counterpart, we find that the active crystal shows true long range order at low TA. On increasing TA, the asters dynamically remodel, concomitantly we find novel phase transitions characterized by bond-orientational and polar order upon “heating”
Item Type: | Article | ||
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Authors: | Gowrishankar, Kripa and Rao, Madan | ||
Document Language: |
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Uncontrolled Keywords: | Nonequilibrium phase transitions, Equilibrium | ||
Subjects: | Natural Sciences > Life sciences; biology | ||
Divisions: | Azim Premji University > School of Arts and Sciences | ||
Full Text Status: | Restricted | ||
Related URLs: | |||
URI: | http://publications.azimpremjiuniversity.edu.in/id/eprint/3582 | ||
Publisher URL: | https://pubs.rsc.org/en/content/getauthorversionpd... |
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