5 papers
Scaling behavior in non-reciprocal and odd conserved dynamics near criticality
Martin Kjøllesdal Johnsrud, Giulia Pisegna, Ramin Golestanian
In recent years, non-reciprocity has been explored as a ubiquitous manifestation of non-equilibrium activity at the microscopic scales for various active matter systems, from mixtu…
Spinning mixtures: nonreciprocity transfers chirality across scales in scalar densities
Giulia Pisegna, Suropriya Saha
A mixture of spinning particles of two different types represents a system where both nonreciprocity and chirality determine the emergent dynamics. In this work we present a minima…
Non-reciprocal mixtures in suspension: the role of hydrodynamic interactions
Giulia Pisegna, Navdeep Rana, Ramin Golestanian +1
The collective chasing dynamics of non-reciprocally coupled densities leads to stable travelling waves which can be mapped to a model for emergent flocking. In this work, we couple…
Hydrodynamic stresses in a multi-species suspension of active Janus colloids
Gennaro Tucci, Giulia Pisegna, Ramin Golestanian +1
A realistic description of active particles should include interactions with the medium, commonly a momentum-conserving simple fluid, in which they are suspended. In this work, we…
Emergent polar order in non-polar mixtures with non-reciprocal interactions
Giulia Pisegna, Suropriya Saha, Ramin Golestanian
Phenomenological rules that govern the collective behaviour of complex physical systems are powerful tools because they can make concrete predictions about their universality class…