Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Willmann, R. D."'
Autor:
Lubeck, S., Willmann, R. D.
Publikováno v:
Nuclear Physics B 718, 341 (2005)
In this work we consider five different lattice models which exhibit continuous phase transitions into absorbing states. By measuring certain universal functions, which characterize the steady state as well as the dynamical scaling behavior, we prese
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505219
Autor:
Lubeck, S., Willmann, R. D.
Publikováno v:
Journal of Statistical Physics 115, 1231 (2004)
In this work we consider the steady state scaling behavior of directed percolation around the upper critical dimension. In particular we determine numerically the order parameter, its fluctuations as well as the susceptibility as a function of the co
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401395
Autor:
Levine, E., Willmann, R. D.
Publikováno v:
J. Phys. A : Math. Gen. 37, 3333 (2004).
A two species particle model on an open chain with dynamics which is non-conserving in the bulk is introduced. The dynamical rules which define the model obey a symmetry between the two species. The model exhibits a rich behavior which includes spont
Externí odkaz:
http://arxiv.org/abs/cond-mat/0311218
Publikováno v:
Phys. Rev. E 67, 066117 (2003)
We study the formation of localized shocks in one-dimensional driven diffusive systems with spacially homogeneous creation and annihilation of particles (Langmuir kinetics).We show how to obtain hydrodynamic equations which describe the density profi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0302208
Using a generalized Rubinstein-Duke model we prove rigorously that kinematic disorder leaves the prediction of standard reptation theory for the scaling of the diffusion constant in the limit for long polymer chains $D \propto L^{-2}$ unaffected. Bas
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301348
Publikováno v:
Phys. Rev. E 68, R035101 (2003)
A class of models of driven diffusive systems which is shown to exhibit phase separation in $d=1$ dimensions is introduced. Unlike all previously studied models exhibiting similar phenomena, here the phase separated state is fluctuating in the bulk o
Externí odkaz:
http://arxiv.org/abs/cond-mat/0211269
Universal scaling behavior of directed percolation and the pair contact process in an external field
Autor:
Lubeck, S., Willmann, R. D.
Publikováno v:
Journal of Physics A 35, 10205 (2002)
We consider the scaling behavior of directed percolation and of the pair contact process with a conjugated field. In particular we determine numerically the equation of state and show that both models are characterized by the same universal scaling f
Externí odkaz:
http://arxiv.org/abs/cond-mat/0210403
Publikováno v:
Physica A 316, 430 (2002)
An exclusion particle model is considered as a highly simplified model of a limit order market. Its price behavior reproduces the well known crossover from over-diffusion (Hurst exponent H>1/2) to diffusion (H=1/2) when the time horizon is increased,
Externí odkaz:
http://arxiv.org/abs/cond-mat/0206446
Autor:
L¨beck, S.1,2, Willmann, R. D.3
Publikováno v:
Journal of Statistical Physics. Jun2004, Vol. 115 Issue 5/6, p1231-1250. 20p.
