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www.elsevier.com/locate/radmeas The decay of OSL signals as stretchedexponential functions
, 2002
"... Optically stimulated luminescence (OSL) and pulsed OSL have been utilized broadly for luminescence dosimetry as well as archaelogical and geological dating. It has been pointed out that in many cases, the decay of the OSL during continuous stimulating light (cwOSL) and that of pulsed OSL following ..."
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than a “normal” exponential can emerge. These results could be 4tted to a stretchedexponential law, exp [ − (t=)] with 0¡ ¡ 1 with surprisingly good agreement for the decay of OSL following a stimulating light pulse. As for the decay of OSL during the exposure to stimulating light, a typical behavior
Apparent stretchedexponential luminescence decay in crystalline solids
 Journal of Luminescence
, 2003
"... crystalline solids ..."
Stretchedexponential relaxation of birefringence in a critical binary mixture
"... Transient electric birefringence in nearcritical binary mixtures is found to exhibit stretchedexponential relaxation of the form exp[( t /~) ' ] , with x constant and r diverging as a power law in reduced temperature. A simple scaling theory of this phenomenon is proposed, relating x and the ..."
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dynamical variable may take on the socalled stretchedexponential f0rm~9~ where the exponent x 5 1, and T may be interpreted as a mean relaxation time. In contrast, when the distribution of relaxation rates is very narrow, one finds x = 1. In understanding the nonexponential relaxation found in a given
Novelty and Collective Attention
 Proceeding of the National Academy of Science (USA
, 2007
"... The subject of collective attention is central to an information age where millions of people are inundated with daily messages. It is thus of interest to understand how attention to novel items propagates and eventually fades among large populations. We have analyzed the dynamics of collective atte ..."
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Cited by 117 (11 self)
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attention among one million users of an interactive website — digg.com — devoted to thousands of novel news stories. The observations can be described by a dynamical model characterized by a single novelty factor. Our measurements indicate that novelty within groups decays with a stretchedexponential law
Applications of physical methods in highfrequency futures markets
"... In the present work we demonstrate the application of different physical methods to highfrequency or tickbytick financial time series data. In particular, we calculate the Hurst exponent and inverse statistics for the price time series taken from a range of futures indices. Additionally, we show ..."
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that in a limit order book the relaxation times of an imbalanced book state with more demand or supply can be described by stretched exponential laws analogous to those seen in many physical systems.
E.: Survival probability of the quantum walk with phase parameters on the twodimensional trapped lattice
, 2013
"... Copyright © 2013 Clement Ampadu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. We investigate the time dependence of the surv ..."
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of the survival probability of quantum walks governed by Fibonacci walks with phase parameters on the trapped twodimensional lattice. We have shown that the survival probability of the quantum walk decays with time obey to the stretched exponential law for all initial states of walkers. We have also shown
Fractals and dynamical chaos in a random 2D Lorentz gas with sinks
 Physica D
, 2004
"... Twodimensional random Lorentz gases with absorbing traps are considered in which a moving point particle undergoes elastic collisions on hard disks and annihilates when reaching a trap. In systems of finite spatial extension, the asymptotic decay of the survival probability is exponential and cha ..."
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and characterized by an escape rate γ, which can be related to the average positive Lyapunov exponent and to the dimension of the fractal repeller of the system. For infinite systems, the survival probability obeys a stretched exponential law of the form P (c, t) ∼ exp(−Ct1/2). The transition between the two
unknown title
"... In this paper we introduce a very simple model exhibiting slow relaxation, typical of glassy systems. We show both numerical and analytically the slow nature of the relaxation process; in particular, we obtain stretchedexponential and power law curves for the energy relaxation depending on the para ..."
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In this paper we introduce a very simple model exhibiting slow relaxation, typical of glassy systems. We show both numerical and analytically the slow nature of the relaxation process; in particular, we obtain stretchedexponential and power law curves for the energy relaxation depending
Stretched exponentials from superstatistics
, 2005
"... Distributions exhibiting fat tails occur frequently in many different areas of science. A dynamical reason for fat tails can be a socalled superstatistics, where one has a superposition of local Gaussians whose variance fluctuates on a rather large spatiotemporal scale. After briefly reviewing this ..."
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to stretched exponentials. The special case η = 1 corresponds to Tsallis statistics and the special case η = −1 to exponential statistics of the square root of energy. Possible applications for granular media and hydrodynamic turbulence are discussed. 1
Results 1  10
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