Fast optical preparation, control and read-out of single quantum dot spin

Abstract

We propose and demonstrate the sequential initialization, optical control, and read-out of a single spin trapped in a semiconductor quantum dot. Hole spin preparation is achieved through ionization of a resonantly excited electron-hole pair. Optical control is observed as a coherent Rabi rotation between the hole and charged exciton states, which is conditional on the initial hole spin state. The spin-selective creation of the charged exciton provides a photocurrent read-out of the hole spin state.

5 pages, 3 figures, resubmitted to PRL, changes due to referee comments

References in corpus (8)

• Quantum Computation with Quantum Dots
• Observation of Faraday rotation from a single confined spin
• Observation of extremely slow hole spin relaxation in self-assembled quantum dots
• Optical control of spin coherence in singly charged (In,Ga)As/GaAs quantum dots
• Polarized fine structure in the excitation spectrum of a negatively charged quantum dot
• Theory of fast optical spin rotation in a quantum dot based on geometric phases and trapped states
• Selective spin coupling through a single exciton
• High fidelity all-optical control of quantum dot spins: detailed study of the adiabatic approach

Cited by in corpus (62)

• Damping of Exciton Rabi Rotations by Acoustic Phonons in Optically Excited InGaAs/GaAs Quantum Dots
• Spin decoherence of a heavy hole coupled to nuclear spins in a quantum dot
• Ultrafast optical control of entanglement between two quantum dot spins
• The entanglement beam splitter: a quantum-dot spin in a double-sided optical microcavity
• Quantum dot Rabi rotations beyond the weak exciton-phonon coupling regime
• Hole spin dephasing time associated to hyperfine interaction in quantum dots
• Phonon-assisted transitions from quantum dot excitons to cavity photons
• Modelling exciton-phonon interactions in optically driven quantum dots
• Quantum computing by optical control of electron spins
• Coherent optical control of the spin of a single hole in a quantum dot
• Electrical control of inter-dot electron tunneling in a quantum dot molecule
• Hybrid solid state qubits: the powerful role of electron spins
• Room-temperature coherent optical manipulation of single-hole spins in solution-grown perovskite quantum dots
• Pumping of nuclear spins by the optical solid effect in a quantum dot
• Polarization properties of excitonic qu-bits in single self-assembled quantum dots
• Determinisitic Writing and Control of the Dark Exciton Spin using Short Single Optical Pulses
• Spin interactions, relaxation and decoherence in quantum dots
• Two qubit conditional quantum logic operation in a single self-assembled quantum dot
• Optically induced rotation of a quantum dot exciton spin
• Exciton-spin memory with a semiconductor quantum dot molecule
• Complete control of a matter qubit using a single picosecond laser pulse
• Atomistic theory of dark excitons in self-assembled quantum dots of reduced symmetry
• High resolution coherent population trapping on a single hole spin in a semiconductor
• High fidelity optical preparation and coherent Larmor precession of a single hole in an InGaAs quantum dot molecule
• A Charge and Spin Readout Scheme For Single Self-Assembled Quantum Dots
• Depolarization of Electronic Spin Qubits Confined in Semiconductor Quantum Dots
• Towards optimized suppression of dephasing in systems subject to pulse timing constraints
• Fast preparation of single hole spin in InAs/GaAs quantum dot in Voigt geometry magnetic field
• Effect of confinement potential geometry on entanglement in quantum dot-based nanostructures
• Charge control in InP/GaInP single quantum dots embedded in Schottky diodes
• Radiative cascades in charged quantum dots
• All optical quantum control of a spin-quantum state and ultrafast transduction into an electric current
• Fast high fidelity hole spin initialization in a single InGaAs quantum dot
• Charged excitons and biexcitons in laterally coupled InGaAs quantum dots
• High-fidelity initialization of long-lived quantum dot hole spin qubits by reduced fine-structure splitting
• Dominant role of the shear strain induced admixture in spin-flip processes in self-assembled quantum dots
• Probing spin relaxation in an individual InGaAs quantum dot using a single electron optical spin memory device
• Stark Spectroscopy and Radiative Lifetimes in Single Self-Assembled CdTe Quantum Dots
• Probing the dark exciton states of a single quantum dot using photocurrent spectroscopy in magnetic fields
• Controlled tunneling induced dephasing of Rabi rotations for ultra-high fidelity hole spin initialization
• All electrically controlled quantum gates for single heavy hole spin qubits
• Voltage-controlled electron tunnelling from a single self-assembled quantum dot embedded in a two-dimensional-electron-gas-based photovoltaic cell
• Optically induced spin gates in coupled quantum dots using the electron-hole exchange interaction
• Electron and hole g tensors of neutral and charged excitons in single quantum dots by high-resolution photocurrent spectroscopy
• Complete state tomography of a quantum dot confined spin qubit
• Controllable electron spin dephasing due to phonon state distinguishability in a coupled quantum dot system
• Towards Tripartite Hybrid Entanglement in Quantum Dot Molecules
• Optical rotation of heavy hole spins by non-Abelian geometrical means
• Hole Spin Pumping and Re-pumping in a p-type δ-doped InAs Quantum Dot
• Tunneling-related electron spin relaxation in self-assembled quantum-dot molecules
• Towards Quantum Repeaters with Solid-State Qubits: Spin-Photon Entanglement Generation using Self-Assembled Quantum Dots
• Probing bath-induced entanglement in a qubit pair by measuring photon correlations
• Giant Photocurrent Enhancement by Coulomb Interaction in a Single Quantum Dot for Energy Harvesting
• Polarization memory in single Quantum Dots
• Tuning the carrier tunneling in a single quantum dot with a magnetic field in Faraday geometry
• All-electric single electron spin initialization
• Coherence protection in coupled quantum systems
• Fidelity of optically induced single-spin rotations in semiconductor quantum dots in the presence of nuclear spins
• Dynamics and relaxation of sp biexcitons in disk-shaped quantum dots
• Passive stabilization of hole spin qubit using optical Stark effect
• Coherence limitations in the optical control of the singlet-triplet qubit in a quantum dot molecule
• Optical Spin Initialization and Non-Destructive Measurement in a Quantum Dot Molecule