Research Interests & Publications:
Fields of research: Statistical Physics and Biophysics
My group is focused on understanding far from equilibrium systems. These often display unusual dynamical and collective behaviors which can not be seen in equilibrium. In particular, we are currently interested in evaluating forces exerted by a class of nonequilibrium systems called active systems (these include, for example, driven colloids, `gases' of bacteria and biological gels). The forces they exert defy much of our equilibrium intuition, in particular since they lack an equation of state. We are also interested in evaluating analogues of free energies in interacting diffusive particles systems.
Yariv Kafri's Website
G. Bunin, L. D'Alessio, Y. Kafri and A. Polkovnikov, Universal energy fluctuations in thermally isolated driven systems, Nature Physics, in press.
M. Sheinman, O. Benichou, Y. Kafri and R. Voituriez, Classes of fast and specific search mechanisms for proteins on DNA, submitted.
O. Benichou, Y. Kafri, M. Sheinman and R. Voituriez, Searching fast for a target on a DNA without falling to traps, Physical Review Letters 103, 138102 (2009).
J. Tailleur, M. R. Evans and Y. Kafri, Non-equilibrium phase transitions in tubulation by molecular motors, Physical Review Letters, 102, 118109 (2009).
O. Campas, Y. Kafri, K. B. Zeldovich, J. Casademunt and J. F. Joanny, Collective dynamics of molecular motors pulling on fluid membranes, Physical Review Letters 97, 038101 (2006).
Y. Kafri, D. K. Lubensky and D. R. Nelson, Dynamics of molecular motors and polymer translocation with sequence heterogeneity, Biophysical Journal 86, 3373-3391 (2004).
Y. Kafri, E. Levine, D. Mukamel, G. M. Schutz and J. Torok, Criterion for phase separation in one dimensional driven system, Physical Review Letters 89, 035702:1-4 (2002).
Y. Kafri, D. Mukamel, and L. Peliti, Why is the DNA denaturation transition first order?, Physical Review Letters 85, 4988-4991 (2000).
M. R. Evans, Y. Kafri, H. M. Koduvely and D. Mukamel, Phase separation in one-dimensional driven diffusive systems, Physical Review Letters 80, 425-429 (1998).