Electrical control of spin relaxation in a quantum dot

Abstract

We demonstrate electrical control of the spin relaxation time T_1 between Zeeman split spin states of a single electron in a lateral quantum dot. We find that relaxation is mediated by the spin-orbit interaction, and by manipulating the orbital states of the dot using gate voltages we vary the relaxation rate W= (T_1)^-1 by over an order of magnitude. The dependence of W on orbital confinement agrees with theoretical predictions and from these data we extract the spin-orbit length. We also measure the dependence of W on magnetic field and demonstrate that spin-orbit mediated coupling to phonons is the dominant relaxation mechanism down to 1T, where T_1 exceeds 1s.

4 pages, 3 figures

References in corpus (14)

• Spins in few-electron quantum dots
• Single-shot read-out of an individual electron spin in a quantum dot
• Driven coherent oscillations of a single electron spin in a quantum dot
• Zeeman energy and spin relaxation in a one-electron quantum dot
• Single-shot readout of electron spin states in a quantum dot using spin-dependent tunnel rates
• Enhancement of electron spin coherence by optical preparation of nuclear spins
• Experimental signature of phonon-mediated spin relaxation
• Counting statistics and super-Poissonian noise in a quantum dot
• Theory of phonon-induced spin relaxation in laterally coupled quantum dots
• Energy Dependent Tunneling in a Quantum Dot
• Geometrical spin dephasing in quantum dots
• Phonon-induced electron relaxation in weakly-confined single and coupled quantum dots
• Anisotropy of spin splitting and spin relaxation in lateral quantum dots
• Spin Relaxation in a Quantum Dot due to Nyquist Noise

Cited by in corpus (144)

• Quantum Simulation
• Natural and artificial atoms for quantum computation
• Prospects for Spin-Based Quantum Computing
• Nuclear spin physics in quantum dots: an optical investigation
• Rapid Single-Shot Measurement of a Singlet-Triplet Qubit
• Suppressing Spin Qubit Dephasing by Nuclear State Preparation
• Dispersive Readout of a Few-Electron Double Quantum Dot with Fast rf Gate-Sensors
• Decoherence in Solid State Qubits
• Review of performance metrics of spin qubits in gated semiconducting nanostructures
• Interlaced Dynamical Decoupling and Coherent Operation of a Singlet-Triplet Qubit
• Relaxation and Dephasing in a Two-electron 13C Nanotube Double Quantum Dot
• Electron counting in quantum dots
• Measurement of the Spin Relaxation Time of Single Electrons in a Silicon MOS-Based Quantum Dot
• Quantum computing by optical control of electron spins
• Electron Spin for Classical Information Processing: A Brief Survey of Spin-Based Logic Devices, Gates and Circuits
• Frequency Multiplexing for Readout of Spin Qubits
• Probing quantum devices with radio-frequency reflectometry
• Prospects for measurement-based quantum computing with solid state spins
• Superconducting Spin Qubits
• Efficient C-Phase gate for single-spin qubits in quantum dots
• Fast spin information transfer between distant quantum dots using individual electrons
• Pauli Spin Blockade of Heavy Holes in a Silicon Double Quantum Dot
• Three-electron spin qubits
• Long-Range Interaction of Spin-Qubits via Ferromagnets
• Long-distance spin-spin coupling via floating gates
• Coherent spin control of s-, p-, d- and f-electrons in a silicon quantum dot
• Spin relaxation in a Si quantum dot due to spin-valley mixing
• Relaxation of hole spins in quantum dots via two-phonon processes
• Tunable singlet-triplet splitting in a few-electron Si/SiGe quantum dot
• Direct Measurement of Quantum Dot Spin Dynamics using Time-Resolved Resonance Fluorescence
• Hyperfine-phonon spin relaxation in a single-electron GaAs quantum dot
• Quantum nondemolition measurement of an electron spin qubit
• Single-Spin Relaxation in a Synthetic Spin-Orbit Field
• Tunable g factor and phonon-mediated hole spin relaxation in Ge/Si nanowire quantum dots
• Charge and spin dynamics in interacting quantum dots
• Self-Correcting Quantum Memory in a Thermal Environment
• Hubbard model description of silicon spin qubits: charge stability diagram and tunnel coupling in Si double quantum dots
• GaAs Quantum Dot Thermometry Using Direct Transport and Charge Sensing
• Spin Relaxation due to Charge Noise
• Relaxation and Readout Visibility of a Singlet-Triplet Qubit in an Overhauser Field Gradient
• Coherent Manipulation of Individual Electron Spin in a Double Quantum Dot Integrated with a Micro-Magnet
• Measuring the degeneracy of discrete energy levels using a GaAs/AlGaAs quantum dot
• Optical detection of single electron spin resonance in a quantum dot
• Giant anisotropy of spin relaxation and spin-valley mixing in a silicon quantum dot
• Spin relaxation anisotropy in a GaAs quantum dot
• Anisotropy and suppression of spin--orbit interaction in a GaAs double quantum dot
• Spin Orbit Mediated Manipulation of Heavy Hole Spin Qubit in Gated Semiconductor Nanodevices
• Simultaneous Spin-Charge Relaxation in Double Quantum Dots
• Coupling of three-spin qubits to their electric environment
• Implications of Simultaneous Requirements for Low Noise Exchange Gates in Double Quantum Dots
• Time-dependent quantum transport: causal superfermions, exact fermion-parity protected decay mode, and Pauli exclusion principle for mixed quantum states
• Observation of decoherence in a carbon nanotube mechanical resonator
• Theory of Single Electron Spin Relaxation in Si/SiGe Lateral Coupled Quantum Dots
• Effective Hamiltonian for the hybrid double quantum dot qubit
• Quantum theory of the charge stability diagram of semiconductor double quantum dot systems
• Effective time-reversal symmetry breaking in the spin relaxation in a graphene quantum dot
• Decoherence of spin qubits due to a nearby charge fluctuator in gate-defined double dots
• Two-spin dephasing by electron-phonon interaction in semiconductor double quantum dots
• Spin-Dependent Tunneling of Single Electrons into an Empty Quantum Dot
• Inelastic scattering and heating in a molecular spin pump
• Semiconductor quantum ring as a solid-state spin qubit
• A phonon laser utilizing quantum-dot spin states
• Longitudinal spin-relaxation of donor-bound electrons in direct bandgap semiconductors
• Footprints of hyperfine, spin-orbit, and decoherence effects in Pauli spin blockade
• Electrical control of phonon mediated spin relaxation rate in semiconductor quantum dots: the Rashba vs the Dresselhaus spin-orbit couplings
• Theory of Spin Relaxation in Two-Electron Lateral Coupled Quantum Dots
• Wave function engineering in quantum dot-ring nanostructures
• Ferromagnetic order of nuclear spins coupled to conduction electrons: a combined effect of the electron-electron and spin-orbit interactions
• Quantum dot behavior in transition metal dichalcogenides nanostructures
• High-Fidelity Hot Gates for Generic Spin-Resonator Systems
• Fine structure and optical pumping of spins in individual semiconductor quantum dots
• Noise Spectroscopy Using Correlations of Single-Shot Qubit Readout
• Characterization of a microwave frequency resonator via a nearby quantum dot
• Spin polarization anisotropy in a narrow spin-orbit-coupled nanowire quantum dot
• Do micromagnets expose spin qubits to charge and Johnson noise?
• Extremely Slow Spin Relaxation in a Spin-Unpolarized Quantum Hall System
• Spintronics with graphene quantum dots
• Single-spin manipulation in a double quantum dot in the field of a micromagnet
• Hybrid continuous dynamical decoupling: a photon-phonon doubly dressed spin
• Nuclear Dynamics During Landau-Zener Singlet-Triplet Transitions in Double Quantum Dots
• Single-shot measurement and tunnel-rate spectroscopy of a Si/SiGe few-electron quantum dot
• Electric g Tensor Control and Spin Echo of a Hole-Spin Qubit in a Quantum Dot Molecule
• Phenomenological Study of Decoherence in Solid-State Spin Qubits due to Nuclear Spin Diffusion
• Gate control of a quantum dot single-electron spin in realistic confining potentials: anisotropy effects
• Spin-Valley Protected Kramers Pair in Bilayer Graphene
• Noise Analysis of Qubits Implemented in Triple Quantum Dot Systems in a Davies Master Equation Approach
• Relaxation in quantum dots due to evanescent-wave Johnson noise from a metallic backgate
• Spectroscopy of Quantum-Dot Orbitals with In-Plane Magnetic Fields
• Probing spin relaxation in an individual InGaAs quantum dot using a single electron optical spin memory device
• Beating in electronic transport through quantum dot based devices
• Optimal geometry of lateral GaAs and Si/SiGe quantum dots for electrical control of spin qubits
• Spin Manipulation and Relaxation in Spin-Orbit Qubits
• All electrically controlled quantum gates for single heavy hole spin qubits
• Dynamics of coupled spins in quantum dots with strong spin-orbit interaction
• Intrinsic Metastabilities in the Charge Configuration of a Double Quantum Dot
• The theory of coherent dynamic nuclear polarization in quantum dots
• Phonon mediated spin relaxation in a moving quantum dot: Doppler shift, Cherenkov radiation, and spin relaxation boom
• Spin-dependent tunneling into an empty lateral quantum dot
• Controllable anisotropic exchange coupling between spin qubits in quantum dots
• Kondo effect in electrostatically defined ZnO quantum dots
• Control of a spin qubit in a lateral GaAs quantum dot based on symmetry of gating potential
• Uniaxial dynamical decoupling for an open quantum system
• Electric dipole spin resonance at shallow donors in quantum wires
• Gate control of Berry phase in III-V semiconductor quantum dots
• Evanescent-wave Johnson Noise in small devices
• Geometric spin manipulation in semiconductor quantum dots
• Electrical control of spin relaxation time in complex quantum nanostructures
• Quantum-ring spin interference device tuned by quantum point contacts
• Magnetoconductance signatures of chiral domain-wall bound states in magnetic topological insulators
• Measuring Charge Transport in an Amorphous Semiconductor Using Charge Sensing
• Universal power law decay of spin polarization in double quantum dot
• Spin Accumulation Encoded in Electronic Noise for Mesoscopic Billiards with Finite Tunneling Rates
• Theory of a.c. spin current noise and spin conductance through a quantum dot in the Kondo regime I: The equilibrium case
• Anisotropy with respect to the applied magnetic field of spin qubit decoherence times
• Spin echo dynamics under an applied drift field in graphene nanoribbon superlattices
• Unraveling spin dynamics from charge fluctuations
• Entanglement of electron pairs extracted from a many-body system
• Implementation of the quantum walk step operator in lateral quantum dots
• Isotropic and Anisotropic g-factor Corrections in GaAs Quantum Dots
• Semiconducting double-dot exchange-only qubit dynamics in presence of magnetic and charge noises
• Spin-orbit coupled particle in a spin bath
• Theory of spin qubits in nanostructures
• Unconventional Transport in the "Hole" Regime of a Si Double Quantum Dot
• Charge transport through a semiconductor quantum dot-ring nanostructure
• Solid-state magnetic traps and lattices
• Formation of multiple quantum dots in ZnO heterostructures
• Preparation and Readout of Multielectron High-Spin States in a Gate-Defined GaAs/AlGaAs Quantum Dot
• Anisotropy of spin-orbit induced electron spin relaxation in [001] and [111] grown GaAs quantum dots
• Spin relaxation of a donor electron coupled to interface states
• Spin-Atomic Vibration Interaction and Spin-Flip Hamiltonian of a Single Atomic Spin in a Crystal Field
• The Effect of Electrostatic Screening on a Nanometer Scale Electrometer
• Influence of Random Telegraph Noise on Quantum Bit Gate Operation
• Spin Hot Spots in Single-Electron GaAs-based Quantum Dots
• The influence of spin-flip scattering on the preparation and detection of a single spin state in a quantum dot attached to a spin battery
• A quantitative study of spin-flip co-tunneling transport in a quantum dot
• Spin-relaxation anisotropy in a nanowire quantum dot with strong spin-orbit coupling
• Acoustic phonons, spin-phonon coupling and spin relaxation via the lattice reorientation mechanism in hexagonal germanium nanowires
• The two-impurity Kondo model with spin-orbit interactions
• Direct measurement of spin-flip rates in single-electron tunneling
• Rashba proximity states in superconducting tunnel junctions
• Heavy-hole spin relaxation in quantum dots: Isotropic versus anisotropic effects
• Time Resolved Control of Electron Tunnelling Times and Single-shot Spin Readout in a Quantum Dot
• Ultra-narrow ionization resonances in a quantum dot under broadband excitation
• Zero temperature geometric spin dephasing on a ring in presence of an Ohmic environment