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Analyzing group index of impurity doped quantum dots under the superintendence of Gaussian white noise

  • Regular Article - Mesoscopic and Nanoscale Systems
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Abstract

Present enquiry explores the group index (GI) of quantum dot (QD) doped with impurity under the aegis of applied Gaussian white noise. In this context various important physical parameters are varied over a range and corresponding variations of GI profiles are meticulously scrutinized. The study reveals that the presence/absence of noise, mode of application of noise (additive/multiplicative) and the particular physical parameter concerned, together, design the GI profiles in diverse ways. The role of noise is manifested principally by the nature of the GI peak shift (blue/red) and by the change in the signs of GI peaks (+ve/−ve) in different regimes of the physical quantity (low value/high value). The study describes the subtle interplay between the physical quantities and noise and indicates a good number of prolific ways for efficiently decreasing the speed of light. Such slowing down of the speed of light bears unquestionable importance in the field of nanoelectronics and optoelectronics.

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Author’s comment: This is a theoretical study and no experimental data has been listed.]

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Acknowledgements

The authors S. M. A., A. B., D. R. and M. G. thank DST-FIST (Govt. of India) and UGC-SAP (Govt. of India) for support.

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Authors and Affiliations

  1. Department of Chemistry, Physical Chemistry Section, Visva Bharati University, Santiniketan, Birbhum, 731 235, West Bengal, India

    Sk. Md. Arif, Aindrila Bera & Manas Ghosh

  2. Department of Chemistry, Abhedananda Mahavidyalaya, Sainthia, Birbhum, 731234, West Bengal, India

    Debi Roy

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  1. Sk. Md. Arif
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  2. Aindrila Bera
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  4. Manas Ghosh
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All the authors contributed equally to the paper.

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Correspondence to Manas Ghosh.

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Arif, S.M., Bera, A., Roy, D. et al. Analyzing group index of impurity doped quantum dots under the superintendence of Gaussian white noise. Eur. Phys. J. B 95, 21 (2022). https://doi.org/10.1140/epjb/s10051-022-00293-1

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  • DOI: https://doi.org/10.1140/epjb/s10051-022-00293-1

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