Hole-capture competition between a single quantum dot and an ionized acceptor
arXiv:1808.05574 · doi:10.1103/PhysRevB.98.125426
Abstract
We study the competition of hole capture between an In(Ga)As quantum dot and a directly adjacent ionized impurity in view of spin-photon interfaces. The Kerr rotation noise spectroscopy at 4.2 K shows that the hole-capture probability of the In(Ga)As quantum dot is about one order of magnitude higher compared to the hole-capture probability of the ionized impurity and suggests that a simultaneous occupation of quantum dot and impurity by a hole is efficiently suppressed due to Coulomb interaction. A theoretical model of interconnected spin and charge noise allows the quantitative specification of all relevant time scales.
arXiv comment10 pages, 3 figures
References in corpus (16)
- Charge noise and spin noise in a semiconductor quantum device
- A Coherent Spin-Photon Interface in Silicon
- Observation of extremely slow hole spin relaxation in self-assembled quantum dots
- The Theory of Spin Noise Spectroscopy: A Review
- Pump-Probe Faraday Rotation and Ellipticity in an Ensemble of Singly Charged Quantum Dots
- Optical measurements of spin noise as a high resolution spectroscopic tool
- Macroscopic Polarization Rotation Induced by a Single Spin
- Auger recombination in self-assembled quantum dots: Quenching and broadening of the charged exciton transition
- Optical Spin Noise of a Single Hole Spin Localized in an (InGa)As Quantum Dot
- Measurement of heavy-hole spin dephasing in (InGa)As quantum dots
- Spin noise of electrons and holes in (In,Ga)As quantum dots: experiment and theory
- Spin and reoccupation noise in a single quantum dot beyond the fluctuation-dissipation theorem
- Spin fluctuations of non-equilibrium electrons and excitons in semiconductors
- Nonequilibrium spin noise in a quantum dot ensemble
- Theory of optical spin control in quantum dot microcavities
- Measurement back-action and spin noise spectroscopy in a charged cavity-QED device in the strong coupling regime