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Following fluctuating signs: anomalous active superdiffusion of swimmers in anisotropic media
John Toner, Hartmut Löwen, Henricus H. Wensink
Active (i.e., self-propelled or swimming) particles moving through an isotropic fluid exhibit conventional diffusive behavior. We report anomalous diffusion of an active particle m…
Emergent smectic order in simple active particle models
Pawel Romanczuk, Hugues Chaté, Leiming Chen +2
Novel "smectic-P" behavior, in which self-propelled particles form rows and move on average along them, occurs generically within the orientationally-ordered phase of simple models…
The geometry of thresholdless active flow in nematic microfluidics
Richard Green, John Toner, Vincenzo Vitelli
"Active nematics" are orientationally ordered but apolar fluids composed of interacting constituents individually powered by an internal source of energy. When activity exceeds a s…
Superfluidity and Phase Correlations of Driven Dissipative Condensates
J. Keeling, L. M. Sieberer, E. Altman +3
We review recent results on the coherence and superfluidity of driven dissipative condensates, i.e., systems of weakly-interacting non-conserved Bosons, such as polariton condensat…
Surprising mappings of 2D polar active fluids to 2D soap and 1D sandblasting
Leiming Chen, Chiu Fan Lee, John Toner
Active fluids and growing interfaces are two well-studied but very different non-equilibrium systems. Each exhibits non-equilibrium behavior quite different from that of their equi…