N. Berger: Quenched invariance principle for simlpe random walk on percolation clusters We prove that the random walk on the infinite cluster of supercritical Bernoulli percolation scales to Brownian Motion for almost every configuration. Based on joint work with Marek Biskup.
W. de Roeck: Rigorous derivation of resonance fluorescence statistics
One illuminates an atom with a laser and one counts the photons that are
emitted by the atom. What is the statistics of this counting process?
An answer to this question goes back at least to Mollow ('68). It has
since then often been rederived within the framework of quantum
semigroups (analogues of the "classical" markov processes). My
contribution is a rigorous connection between a hamiltonian description
of the setup (more precisely, the statistics of number operators in the
detector) on the one side, and the statistics of that counting process
on the other side. The latter emerges from the former in a scaling limit
which is known as the Van Hove scaling or the weak coupling limit.
N. Kurt: Entropic Repulsion for Membrane Models
Membrane Models describe the behaviour of interfaces between two
phases. We will introduce a class of such models, compare it to the
well-known "lattice free field" and ask what happens if we force the
interface to stay locally above a "hard wall".
W. M. Ruszel: Chaotic temperature dependence: a bounded spin example
We present a class of examples of nearest-neighbour,
bounded-spin models, in which the
low-temperature Gibbs measures do not converge as the temperature is lowered
to zero, in any dimension.
A. Klimovsky: The Aizenman-Sims-Starr Scheme for the Multidimensional SK Model
We extend the Aizenman-Sims-Starr scheme to the case of the
multidimensional Sherrington-Kirkpatrick model. In particular, by
comparison with the multidimensional GREM analogue, we get a
representation of the limiting free energy in terms of a certain
saddle-point Parisi formula. For high enough temperatures the
saddle-point formula degenerates to the usual Parisi formula. We also
prove a quenched LDP, which may be of independent interest. The talk is
based on joint work with A. Bovier (Berlin)
R. Sims: Lieb-Robinson bounds and applications
A. Weiss: Escaping the Brownian stalkers
We consider three particles B, X, Y moving on the real line. B describes a
Brownian motion while the movements of X and Y depend on their distance to B.
Anyway, it always holds that X <= B <= Y and that X and Y are attracted to B.
We prove that the long-time behavior of Y-X depends crucially on the choice of a
certain parameter.
R. Balász The mean field self-organized critical forest fire model
The forest fire process is random graph process which is a modification of the
Erdos-Renyi random graph process, where forest fires delete the edges of big
components of the random graph. The evolution of the component-size
distribution is related to the Smoluchovski differential equations. The fires
keep the system in a state which is similar tho the critical state of the
Erdos-Renyi process, this phenomenon is called self-organized criticality.
R. Berezin Cross Entropy for Jobshop problem
A. Cadel The SK model with ferromagnetic interaction
X. Yao Random Intersection Graph: the clustering properties
R. Sun The Brownian net
K. Zygalakis Homogenization for Time-Dependent Inertial Particles
T. Sullivan Deterministic Stick-Slip Dynamics in a Random Potential |
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last modified: 24.9.2006 |