DMCA
Aging in Blinking Quantum Dots: Renewal or Slow Modulation?
BibTeX
@MISC{Paradisi_agingin,
author = {Paolo Paradisi and Simone Bianco and Paolo Grigolini},
title = {Aging in Blinking Quantum Dots: Renewal or Slow Modulation?},
year = {}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
In the context of complexity science, in the last few years there has been an increasing interest in the fluorescence intermittency of new nanomaterials, which for this reason have been called [1] Blinking Quantum Dots (BQD). The theoretical interest for these new materials is due, to a great extent, to the properties of their power spectrum. Macroscopic samples of BQD have been studied and have been proved to generate 1/f noise [2,3]. Thus, understanding these new materials is a problem directly connected with the origin of the 1/f noise. BQD is a prototype of complex systems exhibiting Non-Poissonian statistics. The search for the dynamical origin of complexity, meant to be a statistical condition departing from the Poisson prescription, is a hot topic, and recently a proposal, called superstatistics, was made by Beck and Cohen [4]. Furthemore, Beck [5] showed that supers tatistics can be obtained as a slow modulation process, i.e., a process with slowly changing parameters. On the other hand, there is an increasing conviction [6] that anomalous diffusion, and especially sub- diffusion, might find a satisfactory theoretical framework in the subordination perspective. This can be thought as a generalization of the Continuous
Keyphrases
blinking quantum dot new material theoretical interest last year satisfactory theoretical framework statistical condition complex system great extent subordination perspective macroscopic sample sub diffusion complexity science hot topic new nanomaterials fluorescence intermittency poisson prescription dynamical origin anomalous diffusion power spectrum non-poissonian statistic slow modulation process super tatistics
