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arXiv · 1509.01159

Inelastic Confinement-Induced Resonances in Quantum Dots

Maria Troppenz·Simon Sala·Philipp-Immanuel Schneider·Alejandro Saenz
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Abstract

Recently, it was shown that the coupling of center-of-mass and relative motion in atomic systems leads to inelastic confinement-induced resonances (ICIRs) [Phys. Rev. Lett. 109, 073201 (2012)]. In the present work, the possible occurrence of ICIRs in quantum dots is investigated. Particularly, electron-hole and electron-electron two-body systems with long-range Coulomb interaction are considered using the material parameters of GaAs. ICIRs are identified for the electron-hole system verifying the universal nature of the ICIR and, additionally, resonances due to the coupling of center-of-mass and relative motion are found also for the electron-electron system. In analogy to the coherent molecule formation appearing at ICIR in atomic systems a significant change in the mean distance between electrons and holes at the resonance is observed. By using the redistribution of the particle densities at the resonance position in modern quantum-dot experiments, the ICIR can provide a new technique for the control of the electron distribution in quantum dots and for the generation of single photons on demand.

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Maria Troppenz, Simon Sala, Philipp-Immanuel Schneider, Alejandro Saenz. 2015-09-03. Inelastic Confinement-Induced Resonances in Quantum Dots. https://arxiv.org/abs/1509.01159

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