Zobrazeno 1 - 10
of 292
pro vyhledávání: '"GIONA, MASSIMILIANO"'
The fluctuation-dissipation theory is grounded on the Langevin condition expressing the local independence between the thermal force and the particle velocity history. Upon hydrodynamic grounds, it is reasonable to relax this condition in order to ac
Externí odkaz:
http://arxiv.org/abs/2412.19170
The analysis of fluctuation-dissipation relations developed in Giona et al. (2024) for particle hydromechanics is extended to stochastic forcings alternative to Wiener processes, with the aim of addressing the occurrence of Gaussian equilibrium densi
Externí odkaz:
http://arxiv.org/abs/2412.19167
The article provides a unitary and complete solution to the fluctuation-dissipation relations for particle hydromechanics in a generic fluid, accounting for the hydrodynamic fluid-particle interactions (including arbitrary memory kernels in the descr
Externí odkaz:
http://arxiv.org/abs/2412.19166
his article extends the fluctuation-dissipation analysis to generic complex fluids in confined geometries and to all the cases the hydromechanic fluid-interaction kernels may depend on the particle position. This represents a completely new way of en
Externí odkaz:
http://arxiv.org/abs/2409.07562
The phenomenon of ergodicity breaking of stochastic dynamics governed by Generalized Langevin Equations (GLE) in the presence of well-behaved exponentially decaying dissipative memory kernels, recently investigated by many authors (Phys. Rev. E {\bf
Externí odkaz:
http://arxiv.org/abs/2403.05437
Using the initial-value formulation, a dynamic theory for systems evolving according to a Generalized Langevin Equation is developed, providing more restrictive conditions on the existence of equilibrium behavior and its fluctuation-dissipation impli
Externí odkaz:
http://arxiv.org/abs/2403.05431
Publikováno v:
J. Fluid Mech. 1000 (2024) A11
We propose a theoretical method to decompose the solution of a Stokes flow past a body immersed in a confined fluid in two simpler problems, related separately to the two geometrical elements of these systems: (i) the body immersed in the unbounded f
Externí odkaz:
http://arxiv.org/abs/2309.03527
We generalize the multipole expansion and the structure of the Fax\'en operator in Stokes flows obtained for bodies with no-slip to generic boundary conditions, addressing the assumptions under which this generalization is conceivable. We show that a
Externí odkaz:
http://arxiv.org/abs/2303.10064
The fluctuation-dissipation theorem, in the Kubo original formulation, is based on the decomposition of the thermal agitation forces into a dissipative contribution and a stochastically fluctuating term. This decomposition can be avoided by introduci
Externí odkaz:
http://arxiv.org/abs/2302.11672
Autor:
Pezzotti, Chiara, Giona, Massimiliano
We propose a general stochastic formalism for describing the evolution of chemical reactions involving a finite number of molecules. This approach is consistent with the statistical analysis based on the Chemical Master Equation, and provides the for
Externí odkaz:
http://arxiv.org/abs/2301.05072