Influence of Noise–Anharmonicity Interplay on a Few Physical Properties of Quantum Dots

Abstract

Herein, a meticulous inspection of the tuning of a few important physical properties of quantum dots (QDs), arising out of the subtle interplay between Gaussian white noise (GWN) and anharmonicity, is performed. The physical properties considered are dipole moment, polarizability, Stark shift, magnetic susceptibility, binding energy, interband emission energy, and time‐average excitation rate. The pathway of the introduction of noise (additive/multiplicative) to the QD system, coupled with the symmetry (odd/even) of the anharmonic potential present in the system produces delicate and diverse features in the aforementioned physical properties. These physical attributes consist of monotonic growth, monotonic decline, maximization, minimization, and saturation in these physical properties modulated by different extents of the interplay between the noise mode and the symmetry of the anharmonicity. The study holds relevance in view of potential technological applications of QDs under the simultaneous influence of anharmonic potential and noise.