Diffusion in randomly perturbed dissipative dynamics
نویسندگان
چکیده
منابع مشابه
Diffusion of Power in Randomly Perturbed Hamiltonian Partial Differential Equations
Abstract We study the evolution of the energy (mode-power) distribution for a class of randomly perturbed Hamiltonian partial differential equations and derive master equations for the dynamics of the expected power in the discrete modes. In the case where the unperturbed dynamics has only discrete frequencies (finitely or infinitely many) the mode-power distribution is governed by an equation ...
متن کاملDissipative Neutrino Oscillations in Randomly Fluctuating Matter
The generalized dynamics describing the propagation of neutrinos in randomly fluctuating media is analyzed: it takes into account matterinduced, decoherence phenomena that go beyond the standard MSW effect. A widely adopted density fluctuation pattern is found to be physically untenable: a more general model needs to be instead considered, leading to flavor changing effective neutrino-matter in...
متن کاملError distribution in randomly perturbed orbits.
Given an observable f defined on the phase space of some dynamical system generated by the mapT, we consider the error between the value of the function f(Tnx0) computed at time n along the orbit with initial condition x0, and the value f(Tn x0) of the same observable computed by replacing the map Tn with the composition of maps T(omega)(n)o...oT(omega)1, where each T(omega) is chosen randomly,...
متن کاملA Diffusion Analysis Approach to TE Mode Propagation in Randomly Perturbed Optical Waveguides
The aim of this work is to model the evolution of the modal distribution of the electromagnetic field as it propagates along a randomly deformed multimode optical waveguide. When the number of guided modes becomes large we can regard the discrete set of modes as a quasi continuum. In some cases, nearest neighbor coupling predominates over other power transfer mechanisms and the coupling process...
متن کاملModerate Deviations for Randomly Perturbed Dynamical Systems
A Moderate Deviation Principle is established for random processes arising as small random perturbations of one-dimensional dynamical systems of the form Xn = f(Xn−1). Unlike in the Large Deviations Theory the resulting rate function is independent of the underlying noise distribution, and is always quadratic. This allows one to obtain explicit formulae for the asymptotics of probabilities of t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EPL (Europhysics Letters)
سال: 2014
ISSN: 0295-5075,1286-4854
DOI: 10.1209/0295-5075/108/40002