Excitation kinetics of impurity doped quantum dot driven by Gaussian white noise: Interplay with external field

2013 ◽  
Vol 426 ◽  
pp. 54-58 ◽  
Author(s):  
Suvajit Pal ◽  
Sudarson Sekhar Sinha ◽  
Jayanta Ganguly ◽  
Manas Ghosh
Keyword(s):  
Quantum Dot ◽  
External Field ◽  
White Noise ◽  
Gaussian White Noise ◽  
Impurity Doped ◽  
Kinetics Of

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

2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Suvajit Pal ◽  
Sudarson Sekhar Sinha ◽  
Jayanta Ganguly ◽  
Manas Ghosh
Keyword(s):  
Quantum Dot ◽  
White Noise ◽  
Multiplicative Noise ◽  
Gaussian White Noise ◽  
Noise Strength ◽  
Complex Interplay ◽  
Additive And Multiplicative Noise ◽  
Impurity Doped ◽  
Dopant Location ◽  
Kinetics Of

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.

Exploring Optical Dielectric Function of Impurity Doped Quantum Dots in Presence of Gaussian White Noise

2017 ◽  
Vol 6 (1) ◽  
pp. 48-55
Author(s):  
Surajit Saha ◽  
Suvajit Pal ◽  
Jayanta Ganguly ◽  
Manas Ghosh
Keyword(s):  
White Noise ◽  
Dielectric Function ◽  
Gaussian White Noise ◽  
Peak Height ◽  
Peak Position ◽  
Doped Quantum Dots ◽  
Mode Of Application ◽  
Impurity Doped ◽  
Optical Dielectric

We investigate the total optical dielectric function (TODF) of impurity doped quantum dot (QD) in presence and absence of noise. Noise invoked is Gaussian white noise and the QD is doped with Gaussian impurity. Noise has been introduced to the system additively and multiplicatively. The TODF profiles have been monitored as a function of incident photon energy for different values of several important parameters. Moreover, the role of mode of application of noise (additive/multiplicative) on the TODF profiles has also been meticulously analyzed. We have found that the shift of TODF peak position and change in TODF peak height sensitively depend on presence/absence of noise and also on its mode of application. Introduction of multiplicative noise causes greater deviation of TODF profiles from that of noise-free condition than using additive noise.

Oscillator strength of impurity doped quantum dots: Influence of Gaussian white noise

2015 ◽  
Vol 474 ◽  
pp. 41-46 ◽  
Author(s):  
Suvajit Pal ◽  
Jayanta Ganguly ◽  
Surajit Saha ◽  
Manas Ghosh
Keyword(s):  
Quantum Dots ◽  
White Noise ◽  
Oscillator Strength ◽  
Gaussian White Noise ◽  
Doped Quantum Dots ◽  
Impurity Doped
Sign in / Sign up

Export Citation Format

Share Document