Theory of magneto-optical properties of neutral and charged excitons in GaAs/AlGaAs quantum dots

Abstract

Detailed theoretical study of the magneto-optical properties of weakly confining GaAs/AlGaAs quantum dots is provided. We focus on the diamagnetic coefficient and the $g$-factor of the neutral and the charged excitonic states, respectively, and their evolution with various dot sizes for the magnetic fields applied along $[001]$ direction. For the calculations we utilize the combination of $\mathbf{k}\cdot \mathbf{p}$ and the configuration interaction methods. We decompose the theory into four levels of precision,~i.e., (i) single-particle electron and hole states, (ii) non-interacting electron-hole pair, (iii) electron-hole pair constructed from the ground state of both quasiparticles and interacting via the Coulomb interaction (i.e. with minimal amount of correlation), and (iv) that including the effect of correlation. The aforementioned approach allows us to pinpoint the dominant influence of various single- and multi-particle effects on the studied magneto-optical properties, allowing the characterization of experiments using models which are as simple as possible, yet retaining the detailed physical picture.

References in corpus (25)

• A solid-state entangled photon pair source with high brightness and indistinguishability
• On-demand generation of background--free single photons from a solid-state source
• Highly indistinguishable and strongly entangled photons from symmetric GaAs quantum dots
• Droplet Epitaxy of Semiconductor Nanostructures for Quantum Photonic Devices
• Strain-Tunable GaAs Quantum dot: A Nearly Dephasing-Free Source of Entangled Photon Pairs on Demand
• A quantum logic gate between a solid-state quantum bit and a photon
• A quantum light emitting diode for the standard telecom window around 1550 nm
• Two-photon interference from a bright single photon source at telecom wavelengths
• Solid-state ensemble of highly entangled photon sources at rubidium atomic transitions
• Resonance fluorescence of GaAs quantum dots with near-unity photon indistinguishability
• Highly indistinguishable single photons from incoherently and coherently excited GaAs quantum dots
• g-Factors and diamagnetic coefficients of electrons, holes and excitons in InAs/InP quantum dots
• Excitonic structure and pumping power dependent emission blue-shift of type-II quantum dots
• Measurement of g-factor tensor in a quantum dot and disentanglement of exciton spins
• Single-Particle-Picture Breakdown in laterally weakly confining GaAs Quantum Dots
• Resolving the temporal evolution of line broadening in quantum emitters
• Observation of spin-selective tunneling in SiGe nanocrystals
• Non post-selected indistinguishable single photons generated by a quantum dot under resonant excitation
• Electronic states of (InGa)(AsSb)/GaAs/GaP quantum dots
• Optical response of (InGa)(AsSb)/GaAs quantum dots embedded in a GaP matrix
• Inversion of the exciton built-in dipole moment in In(Ga)As quantum dots via nonlinear piezoelectric effect
• Effect of second order piezoelectricity on excitonic structure of stress-tuned InGaAs/GaAs quantum dots
• Correlations between Optical Properties and Voronoi-Cell Area of Quantum Dots
• Type-II InAs/GaAsSb/GaAs quantum dots as artificial quantum dot molecules
• Exciton-photon interaction in a quantum dot embedded in a photonic microcavity

Cited by in corpus (4)

• Electric field induced tuning of electronic correlation in weakly confining quantum dots
• On the importance of antimony for temporal evolution of emission from self-assembled (InGa)(AsSb)/GaAs quantum dots on GaP(001)
• GaAs quantum dots under quasi-uniaxial stress: experiment and theory
• Excitonic fine structure of epitaxial Cd(Se,Te) on ZnTe type-II quantum dots