Team #current members

Ignacio Pagonabarraga

Ignacio Pagonabarraga is Professor in Condensed Matter Physics in the Department of Fundamental Physics at the University of Barcelona. He graduated in Physics from Universitat de Barcelona where he also obtained a PhD in Physics. He has performed postdoctoral stays at Institute Amolf in Amsterdam, in the group of Prof. D. Frenkel and at the University of Edinburgh in the group of  Prof. M.E. Cates. He has published over 130 papers in international journals which have received more than 2900 citations. He has been invited to 82 presentations at International conferences and 45 presentations at academic institutions. He has been appointed visiting or invited professor at the Université Paris-Sud, Université Claude Bernard Lyon 1, Technical University of Berlin, Indian Institute of Technology in Chennai, the Kavli Institute for Theoretical Physics in Santa Barbara, USA


Francisco Alarcón Oseguera

PhD Student

As a PhD student with the Pagonabarraga group, I am interested in active soft matter. In particular, when active matter is made of individual active particles, it is known that active particles generate some interesting features when they interact between each other, they give rise for example to amazing collective motion as swarming or clustering. We have done systematic numerical studies of active particles where our main goals are to characterize the collective behavior of suspensions of active particles as a function of the competition among the propulsion activity and the intensity of an attractive pair potential. Where active particles are modeled individually using the squirmer model, a model that identifies systematically the basic features of the induced hydrodynamic flow around a spherical swimmer, hence the number of parameter that we have used are minima. Moreover, tuning these parameters of activity and interaction we are able to find and characterize different kinds of collective behaviors. Therefore with very few parameters it is possible to recover numerically several types of collective motion of squirmers. We develop this numerical study by using the Lattice Boltzmann method (LBM) which is a relatively new method for simulates the hydrodynamics of a liquid.


Joan Codina

PhD Student

Joan Codina Sala, born in Arenys de Mar in 1990, studied Physics and a Master in Biophysics in University of Barcelona. He is now an FPU PhD student in the Department of Fundamental Physics at the University of Barcelona. He is interested in active particles and the mesoscopic properties of non-equilibrium solvents.


Eloy Navarro Argemí

PhD Student


Demian Levis

Postdoctoral researcher

Demian Levis earned a Master degree in Condensed Matter Physics in 2009 from the University of Orsay and a Ph.D in 2012 in Statistical Mechanics from the University of Pierre et Marie Curie. During his doctorate, under the supervision of Prof. L. Cugliandolo, he worked on the role played by hard constraints in the critical phenomena and out-of-equilibrium dynamics of a geometrically frustrated magnet, spin-ice. After that, he joined the group of Dr. L. Berthier at the University of Montpellier 2 where he started to work on active matter using simple particle models.  In 2014, he joined the group of Prof. I. Pagonabarraga at the University of Barcelona. His research focusses on how activity affects the properties of matter and how it can be exploited to design new self-organising materials or to tune the synchronisation of a large number of coupled oscillators.  


Luis Guardado

PhD Student