Nucleus-mediated spin-flip transitions in GaAs quantum dots

Abstract

Spin-flip rates in GaAs quantum dots can be quite slow, thus opening up the possibilities to manipulate spin states in the dots. We present here estimations of inelastic spin-flip rates mediated by hyperfine interaction with nuclei. Under general assumptions the nucleus mediated rate is proportional to the phonon relaxation rate for the corresponding non-spin-flip transitions. The rate can be accelerated in the vicinity of a singlet-triplet excited states crossing. The small proportionality coefficient depends inversely on the number of nuclei in the quantum dot. We compare our results with known mechanisms of spin-flip in $GaAs$ quantum dot.

RevTex 4 pages, 1 figure, submitted to Phys. Rev. B

Cited by in corpus (85)

• Spintronics: Fundamentals and applications
• Spins in few-electron quantum dots
• Spin qubits in graphene quantum dots
• Electron spin relaxation by nuclei in semiconductor quantum dots
• Semiconductor Spintronics
• Electron spin decoherence in quantum dots due to interaction with nuclei
• Triplet-Singlet Spin Relaxation via Nuclei in a Double Quantum Dot
• Hyperfine interaction in a quantum dot: Non-Markovian electron spin dynamics
• Nuclear spin physics in quantum dots: an optical investigation
• Relaxation, dephasing, and quantum control of electron spins in double quantum dots
• Nuclear spin induced oscillatory current in spin-blocked quantum dots
• Electron spin evolution induced by interaction with nuclei in a quantum dot
• Suppressing Spin Qubit Dephasing by Nuclear State Preparation
• Electron spin dynamics in quantum dots and related nanostructures due to hyperfine interaction with nuclei
• Recipes for spin-based quantum computing
• Nuclear spin state narrowing via gate--controlled Rabi oscillations in a double quantum dot
• Hyperfine-mediated transitions between a Zeeman split doublet in GaAs quantum dots: The role of the internal field
• Dynamic Nuclear Polarization with Single Electron Spins
• Nuclear Spin Switch in Semiconductor Quantum Dots
• Suppression of spin relaxation in an InAs nanowire double quantum dot
• Spin decay and quantum parallelism
• Electron Transport in Double Quantum Dot governed by Nuclear Magnetic Field
• Measurement of Temporal Correlations of the Overhauser Field in a Double Quantum Dot
• Large nuclear Overhauser fields detected in vertically-coupled double quantum dots
• Evolution of a localized electron spin in a nuclear spin environment
• Spin relaxation at the singlet-triplet crossing in a quantum dot
• Effect of Exchange Interaction on Spin Dephasing in a Double Quantum Dot
• Spin state mixing in InAs double quantum dots
• Pulsed-gate measurements of the singlet-triplet relaxation time in a two-electron double quantum dot
• Phonon-mediated electron spin phase diffusion in a quantum dot
• Orbital and spin relaxation in single and coupled quantum dots
• Self-Polarization and Dynamical Cooling of Nuclear Spins in Double Quantum Dots
• Weak values of electron spin in a double quantum dot
• Quantum Description of Nuclear Spin Cooling in a Quantum Dot
• Generating Entanglement and Squeezed States of Nuclear Spins in Quantum Dots
• Effect of external magnetic field on electron spin dephasing induced by hyperfine interaction in quantum dots
• Simultaneous Spin-Charge Relaxation in Double Quantum Dots
• Exchange Control of Nuclear Spin Diffusion in a Double Quantum Dot
• Singlet-Triplet Relaxation in Two-electron Silicon Quantum Dots
• Perceptrons with Hebbian learning based on wave ensembles in plastic potentials
• Theory of Single Electron Spin Relaxation in Si/SiGe Lateral Coupled Quantum Dots
• Measurement, control, and decay of quantum-dot spins
• Two-spin dephasing by electron-phonon interaction in semiconductor double quantum dots
• Full coherent control of nuclear spins in an optically pumped single quantum dot
• Quantum versus classical hyperfine-induced dynamics in a quantum dot
• Nuclear spin relaxation probed by a single quantum dot
• Spin relaxation in quantum dots with random spin-orbit coupling
• Suppression of nuclear spin diffusion at a GaAs/AlGaAs interface measured with a single quantum dot nano-probe
• A spin pump turnstile: parametric pumping of a spin-polarized current through a nearly-closed quantum dot
• Long nuclear spin decay times controlled by optical pumping in individual quantum dots
• Singlet-triplet relaxation in multivalley silicon single quantum dots
• Electron-nuclei spin relaxation through phonon-assisted hyperfine interaction in a quantum dot
• Nuclear Spin Dynamics in Double Quantum Dots: Multi-Stability, Dynamical Polarization, Criticality and Entanglement
• Current-Induced Entanglement of Nuclear Spins in Quantum Dots
• Effect of electron-nuclear spin interactions on electron-spin qubits localized in self-assembled quantum dots
• Spin Relaxation of Conduction Electrons in Semiconductors Due to Interaction with Nuclear Spins
• Long-term Dynamics of the Electron-nuclear Spin System of a Semiconductor Quantum Dot
• Fast Long-Distance Control of Spin Qubits by Photon Assisted Cotunneling
• Triplet-singlet relaxation in semiconductor single and double quantum dots
• Spin relaxation and decoherence of two-level systems
• Observation of Hysteretic Transport Due to Dynamic Nuclear Spin Polarization in a GaAs Lateral Double Quantum Dot
• Two-spin relaxation of P-dimers in Silicon
• Weak measurement of quantum dot spin qubits
• Spin relaxation rates in quasi-one-dimensional coupled quantum dots
• Bistability of optically-induced nuclear spin orientation in quantum dots
• Electron and hole spin relaxation in InP-based self-assembled quantum dots emitting at telecom wavelengths
• Coulomb-Blocked Transport Through a Quantum Dot with Spin-Split Level: Increase of Differential Conductance Peaks by Spin Relaxation
• Dynamical nuclear spin polarization induced by electronic current through double quantum dots
• Determining the electronic triplet-singlet transition probability in double quantum dots: Analogy with the double slit experiment
• Temperature dependence of electron-spin relaxation in a single InAs quantum dot at zero applied magnetic field
• Temperature-dependent dynamical nuclear polarization bistabilities in double quantum dots in the spin-blockade regime
• Spin-orbit coupled particle in a spin bath
• Theory of spin qubits in nanostructures
• Decoherence of Rabi oscillations of electronic spin states in a double quantum dot
• Optically erasing disorder in semiconductor microcavities with dynamic nuclear polarization
• Quantum-dot spin qubit and hyperfine interaction
• Weak values under uncertain conditions
• Voltage controlled nuclear polarization switching in a single InGaAs quantum dot
• Transport and semiclassical dynamics of coupled quantum dots interacting with a local magnetic moment
• Spin Hot Spots in Single-Electron GaAs-based Quantum Dots
• Nuclear spin effect in metallic spin valve
• Spin conversion rates due to dipolar interactions in mono-isotopic quantum dots at vanishing spin-orbit coupling
• Quantifying electron-nuclear spin entanglement dynamics in central-spin systems using one-tangles
• Spin precession caused by spin-spin interaction between bounded electrons in quantum dots
• Non-Markovian dynamics of a localized electron spin due to the hyperfine interaction