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- Title
Controllable double tunneling induced optical soliton storage in linear triple quantum dot molecules.
- Authors
Wang, Yin; Ding, Jianwen; Wang, Denglong
- Abstract
We propose an asymmetric linear triple quantum dot molecule model for a recent experimental device with a double neighboring dot-dot tunneling coupling, of which the linear and nonlinear dynamical properties are analytically studied by using an amplitude variable approach combined with multi-scale method. It is shown that double transparency windows are formed by the double tunneling coupling. Both dark and bright optical solitons are then obtained, of which both the types and the propagating velocity can be controlled by the two tunneling coupling strengths. Interestingly, the propagating velocity of the solitons can approach to zero at certain tunneling coupling strengths, the motionless optical solitons appearing there. The results indicate potential applications of the semiconductor quantum devices for optical soliton storage.
- Subjects
OPTICAL disk drives; TUNNEL design &; construction; OPTICAL solitons; RESONANT tunneling; SEMICONDUCTOR devices; MOLECULAR models
- Publication
European Physical Journal D (EPJ D), 2020, Vol 74, Issue 9, p1
- ISSN
1434-6060
- Publication type
Article
- DOI
10.1140/epjd/e2020-100537-x