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Profiles of Static Quadrupole Polarizability of Impurity‐Doped Quantum Dots Driven by Gaussian White Noise
Author(s) -
Ghosh Anuja,
Arif Sekh Md.,
Bera Aindrila,
Ghosh Manas
Publication year - 2020
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201900766
Subject(s) - additive white gaussian noise , noise (video) , sequential quadratic programming , polarizability , quantum noise , multiplicative noise , quantum dot , physics , computational physics , white noise , materials science , chemistry , quantum , optoelectronics , mathematics , quantum mechanics , computer science , mathematical optimization , telecommunications , statistics , signal transfer function , artificial intelligence , transmission (telecommunications) , analog signal , image (mathematics) , quadratic programming , molecule
Herein, the influence of Gaussian white noise on static quadrupole polarizability (SQP) of the impurity‐doped quantum dots (QDs) is studied. The SQP profiles are critically analyzed as several physical quantities are varied over a range in the absence and presence of noise. The introduction of noise to the system is accomplished via two different routes viz. “additive” and “multiplicative.” SQP profiles consist of noticeable features like maximization, minimization, and saturation in the absence of noise and presence of additive noise. However, on most occasions, the SQP profile becomes devoid of any noticeable characteristics in the presence of multiplicative noise. The multiplicative noise plays some noticeable role only during the direct variation in confinement energy. Herein, the exclusive role of additive noise having strength around a typical value for the generation of large SQP is highlighted. The findings bear mentionable importance on the nonlinear optical properties of QD‐based devices under the aegis of noise.