Recent advances in exciton based quantum information processing in quantum dot nanostructures

Abstract

Recent experimental developments in the field of semiconductor quantum dot spectroscopy will be discussed. First we report about single quantum dot exciton two-level systems and their coherent properties in terms of single qubit manipulations. In the second part we report on coherent quantum coupling in a prototype "two-qubit" system consisting of a vertically stacked pair of quantum dots. The interaction can be tuned in such quantum dot molecule devices using an applied voltage as external parameter.

37 pages, 15 figures, submitted to New Journal of Physics, focus issue on Solid State Quantum Information, added references

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• Coupled quantum dots as quantum gates
• Two-Bit Gates are Universal for Quantum Computation
• Quantum-Information Processing with Semiconductor Macroatoms
• Multi-Exciton Spectroscopy of a Single Self Assembled Quantum Dot
• Direct Observation of Controlled Coupling in an Individual Quantum Dot Molecule
• Voltage-Controlled Optics of a Quantum Dot
• Coherent control of tunneling in a quantum dot molecule
• Spin-based all-optical quantum computation with quantum dots: understanding and suppressing decoherence
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• Resonant nature of phonon-induced damping of Rabi oscillations in quantum dots
• Theory of excitonic spectra and entanglement engineering in dot molecules
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• Photoluminescence of a single InAs quantum dot molecule under applied electric field
• Theory of Fast Quantum Control of Exciton Dynamics in Semiconductor Quantum Dots

Cited by in corpus (32)

• Optically Probing Spin and Charge Interactions in an Tunable Artificial Molecule
• Photon statistics from a resonantly driven quantum dot
• Robust states in semiconductor quantum dot molecules
• Enhanced sequential carrier capture into individual quantum dots and quantum posts controlled by surface acoustic waves
• Acoustically regulated carrier injection into a single optically active quantum dot
• Entanglement creation in a quantum dot-nanocavity system
• Direct observation of acoustic phonon mediated relaxation between coupled exciton states in a single quantum dot molecule
• Measurement, control, and decay of quantum-dot spins
• Electronic coupling in colloidal quantum dot molecules; The case of CdSe/CdS core/shell homodimers
• Electron states in a double quantum dot with broken axial symmetry
• Quantum dot optomechanics in suspended nanophononic strings
• Non-adiabatic transport in a quantum dot turnstile
• Theoretical methods for excitonic physics in two-dimensional materials
• Coulomb mediated hybridization of excitons in artificial molecules
• Quantum control of polaron states in semiconductor quantum dots
• Direct observation of dynamic surface acoustic wave controlled carrier injection into single quantum posts using phase-resolved optical spectroscopy
• Electrical control of the exciton-biexciton splitting in a single self-assembled InGaAs quantum dots
• Theory of semiconductor quantum-wire based single- and two-qubit gates
• Complete mapping of interacting charging states in single coupled colloidal quantum dot molecules
• Controlled tunneling induced dephasing of Rabi rotations for ultra-high fidelity hole spin initialization
• Surface acoustic wave controlled charge dynamics in a thin InGaAs quantum well
• Surface acoustic wave mediated carrier injection into individual quantum post nano emitters
• Photoluminescence spectroscopy of trions in quantum dots: a theoretical description
• Growth and optical properties of self-assembled InGaAs Quantum Posts
• Emission redistribution from a quantum dot-bowtie nanoantenna
• Excitonic states in spherical layered quantum dots
• Tunneling-related electron spin relaxation in self-assembled quantum-dot molecules
• Voltage-Controlled Berry Phases in Two Coupled Quantum Dots
• Rabi oscillations and photocurrent in quantum-dot tunnelling junctions
• Chiral Spin Textures of Strongly Interacting Particles in Quantum Dots
• Manifestation of fundamental quantum complementarities in time-domain interference experiments with quantum dots: A theoretical analysis
• Layer-Dependent Spin Properties of Charge Carriers in Vertically Coupled Telecom Quantum Dots