Table of Contents
ISRN Condensed Matter Physics
Volume 2013, Article ID 798153, 6 pages
Research Article

Excitation Kinetics of Impurity Doped Quantum Dot Triggered by Gaussian White Noise

1Department of Chemistry, Hetampur Raj High School, Hetampur, Birbhum, West Bengal 731124, India
2Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, West Bengal 700032, India
3Department of Chemistry, Brahmankhanda Basapara High School, Basapara, Birbhum, West Bengal 731215, India
4Department of Chemistry, Physical Chemistry Section, Visva Bharati University, Santiniketan, Birbhum, West Bengal 731 235, India

Received 16 April 2013; Accepted 13 May 2013

Academic Editors: I. Galanakis, A. N. Kocharian, and E. Liarokapis

Copyright © 2013 Suvajit Pal 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 excitation kinetics of a repulsive impurity doped quantum dot initiated by the application of Gaussian white noise. In view of a comprehensive research we have considered both additive and multiplicative noise (in Stratonovich sense). The noise strength and the dopant location have been found to fabricate the said kinetics in a delicate way. Moreover, the influences of additive and multiplicative nature of the noise on the excitation kinetics have been observed to be prominently different. The investigation reveals emergence of maximization and saturation in the excitation kinetics as a result of complex interplay between various parameters that affect the kinetics. The present investigation is believed to provide some useful perceptions of the functioning of mesoscopic systems where noise plays some profound role.