Zobrazeno 1 - 10
of 417
pro vyhledávání: '"Chaté H"'
Publikováno v:
Phys. Rev. Lett. 120, 258002 (2018)
We introduce and study in two dimensions a new class of dry, aligning, active matter that exhibits a direct transition to orientational order, without the phase-separation phenomenology usually observed in this context. Characterized by self-propelle
Externí odkaz:
http://arxiv.org/abs/1803.00104
Publikováno v:
Phys. Rev. Lett. 117, 100601 (2016)
For reaction-diffusion processes with at most bimolecular reactants, we derive well-behaved, numerically tractable, exact Langevin equations that govern a stochastic variable related to the response field in field theory. Using duality relations, we
Externí odkaz:
http://arxiv.org/abs/1604.06740
Publikováno v:
Phys. Rev. Lett. 117, 024101 (2016)
We provide numerical evidence that a finite-dimensional inertial manifold on which the dynamics of a chaotic dissipative dynamical system lives can be constructed solely from the knowledge of a set of unstable periodic orbits. In particular, we deter
Externí odkaz:
http://arxiv.org/abs/1604.01859
Publikováno v:
Phys Rev Lett. 110(20):208001 (2013)
Vibrated polar disks have been used experimentally to investigate collective motion of driven particles, where fully-ordered asymptotic regimes could not be reached. Here we present a model reproducing quantitatively the single, binary and collective
Externí odkaz:
http://arxiv.org/abs/1304.4760
Publikováno v:
Phys. Rev. E 85, 026707 (2012)
We present in detail the implementation of the Blaizot-M\'endez-Wschebor (BMW) approximation scheme of the nonperturbative renormalization group, which allows for the computation of the full momentum dependence of correlation functions. We discuss it
Externí odkaz:
http://arxiv.org/abs/1110.2665
We study, in two space dimensions, the large-scale properties of collections of constant-speed polar point particles interacting locally by nematic alignment in the presence of noise. This minimal approach to self-propelled rods allows one to deal wi
Externí odkaz:
http://arxiv.org/abs/0911.1924
Publikováno v:
Phys.Rev.E80:030103,2009
We demonstrate the power of a recently-proposed approximation scheme for the non-perturbative renormalization group that gives access to correlation functions over their full momentum range. We solve numerically the leading-order flow equations obtai
Externí odkaz:
http://arxiv.org/abs/0901.0128
Publikováno v:
Phys Rev Lett 99, 130601 (2007).
A general method to determine covariant Lyapunov vectors in both discrete- and continuous-time dynamical systems is introduced. This allows to address fundamental questions such as the degree of hyperbolicity, which can be quantified in terms of the
Externí odkaz:
http://arxiv.org/abs/0706.0510
Publikováno v:
Phys. Rev. Lett. 98, 115702 (2007)
We elucidate a long-standing puzzle about the non-equilibrium universality classes describing self-organized criticality in sandpile models. We show that depinning transitions of linear interfaces in random media and absorbing phase transitions (with
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610569
Publikováno v:
Prog. Theor. Phys. Suppl. 161 (2006) 244-250
We numerically demonstrate that collective bifurcations in two-dimensional lattices of locally coupled logistic maps share most of the defining features of equilibrium second-order phase transitions. Our simulations suggest that these transitions bet
Externí odkaz:
http://arxiv.org/abs/nlin/0605004