%0 Book Section %1 statphys23_0417 %A Pagonabarraga, I. %A Llopis, I. %B Abstract Book of the XXIII IUPAP International Conference on Statistical Physics %C Genova, Italy %D 2007 %E Pietronero, Luciano %E Loreto, Vittorio %E Zapperi, Stefano %K active biofluid colloids dynamics fluids formation pattern propellers statphys23 topic-7 %T Dynamic regimes and cooperativity of propellers %U http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=417 %X Bacteria or nanomotors constitute examples of objects which are able to propel and move suspended in a fluid in the absence of external driving. The internal forces which generate the motion in these particles allow them to sustain steady states away from equilibrium. The presence of the embedding solvent generates additional long range dynamic interactions. I will describe the peculiarities of such correlations and the cooperativity they give rise to. I will analyze in detail the relevant dynamic regimes as obtained from simulations and will describe how such interactions give rise to local order and promote cluster formation. Analogous phenomena are observed when considering the hydrodynamic cooperativity of rotators. The dynamic interactions in these active materials then provide an alternative mechanism to flocking models studied previously in the literature. Hence, the results shed light into the basic mechanisms which control interactions in active fluids, and complement proposed hydrodynamic theories for such systems. Refrences I. Llopis and I. Pagonabarraga, Europhys. Lett. 75, 999 (2006)

@incollection{statphys23_0417, abstract = {Bacteria or nanomotors constitute examples of objects which are able to propel and move suspended in a fluid in the absence of external driving. The internal forces which generate the motion in these particles allow them to sustain steady states away from equilibrium. The presence of the embedding solvent generates additional long range dynamic interactions. I will describe the peculiarities of such correlations and the cooperativity they give rise to. I will analyze in detail the relevant dynamic regimes as obtained from simulations and will describe how such interactions give rise to local order and promote cluster formation. Analogous phenomena are observed when considering the hydrodynamic cooperativity of rotators. The dynamic interactions in these active materials then provide an alternative mechanism to flocking models studied previously in the literature. Hence, the results shed light into the basic mechanisms which control interactions in active fluids, and complement proposed hydrodynamic theories for such systems. Refrences I. Llopis and I. Pagonabarraga, Europhys. Lett. 75, 999 (2006)}, added-at = {2007-06-20T10:16:09.000+0200}, address = {Genova, Italy}, author = {Pagonabarraga, I. and Llopis, I.}, biburl = {https://www.bibsonomy.org/bibtex/2d9ff8e19db789d896ad4332fa5cfeb81/statphys23}, booktitle = {Abstract Book of the XXIII IUPAP International Conference on Statistical Physics}, editor = {Pietronero, Luciano and Loreto, Vittorio and Zapperi, Stefano}, interhash = {94fee717e8dcd55c4204d154d6e32274}, intrahash = {d9ff8e19db789d896ad4332fa5cfeb81}, keywords = {active biofluid colloids dynamics fluids formation pattern propellers statphys23 topic-7}, month = {9-13 July}, timestamp = {2007-06-20T10:16:19.000+0200}, title = {Dynamic regimes and cooperativity of propellers}, url = {http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=417}, year = 2007 }