On small signal equivalent circuit models for quantum dots. (22nd March 2017)

• Record Type: Journal Article
• Authors: Miano, Giovanni; Forestiere, Carlo; Boag, Amir; Slepyan, Gregory; Maffucci, Antonio
• Other Names: Civalleri Pier Paolo guestEditor.; Csurgay Árpád I. guestEditor.; Porod Wolfgang guestEditor.
• Is Part Of: International journal of circuit theory and applications. Volume 45:Number 7(2017:Jul.)
• Page Start: 935
• Page End: 950
• Publication Date: 2017-03-22
• Subjects: quantum dots -- small signal analysis -- equivalent circuit models -- nanostructures; Electric circuit analysis -- Periodicals; 621.319205
• DOI: 10.1002/cta.2330
• Languages: English
• ISSNs: 0098-9886

Abstract

Summary: In this paper, we introduce small signal equivalent circuit models for quantum dots at equilibrium driven by classical electromagnetic fields. We investigate both an isolated quantum dot and a pair of interacting quantum dots coupled by the electric dipole–dipole interaction. In particular, we derive the impulse responses of the equivalent circuit elements from the density operator of the quantum dots. The use of equivalent circuit elements for complex systems of quantum dots may greatly simplify the analysis and the design of light‐matter interaction processes at the nanoscale. Copyright © 2017 John Wiley & Sons, Ltd. Abstract : This paper deals with small signal equivalent circuit models for quantum dots at equilibrium driven by classical electromagnetic fields. Both an isolated quantum dot and a pair of quantum dots coupled by electric dipole–dipole interaction are considered. The impulse responses of the equivalent circuit elements are derived from the density operator. The use of equivalent circuit elements for complex systems of quantum dots may greatly simplify the analysis and the design of light‐matter interaction processes at the nanoscale.