A Model for Approximately Stretched-Exponential Relaxation with Continuously Varying Stretching Exponents

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Topological derivation of shape exponents for stretched exponential relaxation.

In homogeneous (ideal) glasses, the important dimensionless stretched-exponential shape parameter beta is described by magic (not adjusted) simple fractions derived from fractal configuration spaces of effective dimension d* determined by different topological axioms (rules) in the presence (absence) of a forcing electric field. The rules are based on a new central principle for defining glassy...

متن کامل

Percolation model with continuously varying exponents.

This work analyzes a percolation model on the diamond hierarchical lattice (DHL), where the percolation transition is retarded by the inclusion of a probability of erasing specific connected structures. It has been inspired by the recent interest on the existence of other universality classes of percolation models. The exact scale invariance and renormalization properties of DHL leads to recurr...

متن کامل

Stretched Exponential Relaxation

2 Stretched exponential relaxation in glassy systems 2 2.1 Mathematical properties of the stretched exponential . . . . . . . . . . . . . . . . 3 2.1.1 τ distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1.2 Behavior near zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1.3 Properties of G(k)/G(τ) . . . . . . . . . . . . . . . . . . . . ....

متن کامل

Stretched Exponential Relaxation and Independent Relaxation Modes

We discuss the origin of stretched exponential relaxation in disordered Ising spin systems by writing the master equation on the phase space, and the evolution of local and global spin autocorrelation functions, in terms of independent relaxation modes, which are eigenvectors of the time evolution operator. In this sense it is shown that when the relaxation modes are spatially delocalized, both...

متن کامل

Stretched exponential relaxation in a diffusive lattice model.

We studied the single dimer dynamics in a lattice diffusive model as a function of particle density in the high densification regime. The mean square displacement is found to be subdiffusive both in one and two dimensions. The spatial dependence of the self-part of the van Hove correlation function displays as a function of r a single peak and signals a dramatic slow down of the system for high...

متن کامل

ذخیره 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: Journal of Statistical Physics

سال: 2017

ISSN: 0022-4715,1572-9613

DOI: 10.1007/s10955-017-1723-0