Zeeman energy and spin relaxation in a one-electron quantum dot

Abstract

We have measured the relaxation time, T1, of the spin of a single electron confined in a semiconductor quantum dot (a proposed quantum bit). In a magnetic field, applied parallel to the two-dimensional electron gas in which the quantum dot is defined, Zeeman splitting of the orbital states is directly observed by measurements of electron transport through the dot. By applying short voltage pulses, we can populate the excited spin state with one electron and monitor relaxation of the spin. We find a lower bound on T1 of 50 microseconds at 7.5 T, only limited by our signal-to-noise ratio. A continuous measurement of the charge on the dot has no observable effect on the spin relaxation.

Replaced with the version published in Phys. Rev. Lett

References in corpus (10)

• Quantum Computation with Quantum Dots
• Spin relaxation in semiconductor quantum dots
• Spin-flip transitions between Zeeman sublevels in semiconductor quantum dots
• Few-Electron Quantum Dot Circuit with Integrated Charge Read-Out
• The Addition Spectrum of a Lateral Dot from Coulomb and Spin Blockade Spectroscopy
• Allowed and forbidden transitions in artificial hydrogen and helium atoms
• Hyperfine-mediated transitions between a Zeeman split doublet in GaAs quantum dots: The role of the internal field
• Spin and Polarized Current from Coulomb Blockaded Quantum Dots
• Transient current spectroscopy of a quantum dot in the Coulomb blockade regime
• Charge Distribution in a Kondo Correlated Quantum Dot

Cited by in corpus (178)

• Spintronics: Fundamentals and applications
• 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
• Semiconductor Spintronics
• Semiconductor Spin Qubits
• Spin dynamics in semiconductors
• Phonon-induced decay of the electron spin in quantum dots
• Relaxation, dephasing, and quantum control of electron spins in double quantum dots
• Aharonov-Bohm effect and broken valley-degeneracy in graphene rings
• Entanglement dynamics of two independent qubits in environments with and without memory
• Transport spectroscopy of a single dopant in a gated silicon nanowire
• Electrical control of spin relaxation in a quantum dot
• Electron spin dynamics in quantum dots and related nanostructures due to hyperfine interaction with nuclei
• Bound states and magnetic field-induced valley splitting in gate-tunable graphene quantum dots
• Hyperfine-mediated gate-driven electron spin resonance
• Charge fluctuation induced dephasing of exchange coupled spin qubits
• Recipes for spin-based quantum computing
• Review of performance metrics of spin qubits in gated semiconducting nanostructures
• Tunable spin-selective loading of a silicon spin qubit
• Quantum dots and spin qubits in graphene
• Spin relaxation and anticrossing in quantum dots: Rashba versus Dresselhaus spin-orbit coupling
• Cotunneling Spectroscopy in Few-Electron Quantum Dots
• Tunable effective g-factor in InAs nanowire quantum dots
• Spin separation in cyclotron motion
• Measurements of Kondo and spin splitting in single-electron transistors
• Time-Resolved Detection of Individual Electrons in a Quantum Dot
• AC-driven double quantum dots as spin pumps and spin filters
• Electron Transport in Double Quantum Dot governed by Nuclear Magnetic Field
• Transport through a double quantum dot in the sequential- and co- tunneling regimes
• Rigorous Born Approximation and beyond for the Spin-Boson Model
• Solution for the dynamics of the BCS and central spin problems
• Electron Spin for Classical Information Processing: A Brief Survey of Spin-Based Logic Devices, Gates and Circuits
• A Graphene Quantum Dot with a Single Electron Transistor as Integrated Charge Sensor
• Positive cross-correlations due to Dynamical Channel-Blockade in a three-terminal quantum dot
• Coherent oscillations in a superconducting multi-level quantum system
• Excited-state spectroscopy on a nearly-closed quantum dot via charge detection
• Superconducting Spin Qubits
• Spin effects in single electron tunneling
• Semiconductor few-electron quantum dot operated as a bipolar spin filter
• Spin properties of single electron states in coupled quantum dots
• Decoherence of a single-ion qubit immersed in a spin-polarized atomic bath
• Evolution of a localized electron spin in a nuclear spin environment
• Pulsed-gate measurements of the singlet-triplet relaxation time in a two-electron double quantum dot
• Orbital and spin relaxation in single and coupled quantum dots
• Selective-area chemical beam epitaxy of in-plane InAs one-dimensional channels grown on InP(001), InP(111)B, and InP(110) surfaces
• Spin-orbit coupling and anisotropy of spin splitting in quantum dots
• Universal Scaling of Hyperfine-Induced Electron Spin Echo Decay
• Measurement efficiency and n-shot read out of spin qubits
• Resonant tunnelling features in the transport spectroscopy of quantum dots
• Spin relaxation in a single-electron graphene quantum dot
• Voltage-controlled coded qubit based on electron spin
• Solid-state circuit for spin entanglement generation and purification
• Controlling Spin Qubits in Quantum Dots
• Lande g-tensor in semiconductor nanostructures
• Counting Individual Electrons on Liquid Helium
• Coherent Manipulation of Individual Electron Spin in a Double Quantum Dot Integrated with a Micro-Magnet
• Phonon-induced decoherence for a quantum dot spin qubit operated by Raman passage
• Selective spin coupling through a single exciton
• Dynamical Spin-Blockade in a quantum dot with paramagnetic leads
• Single-shot readout in graphene quantum dots
• Spin Decay in a Quantum Dot Coupled to a Quantum Point Contact
• Spin-selective optical absorption of singly charged excitons in a quantum dot
• Electrical pump-and-probe study of spin singlet-triplet relaxation in a quantum dot
• Spin splitting and precession in quantum dots with spin-orbit coupling: the role of spatial deformation
• Radiative emission dynamics of quantum dots in a single cavity micropillar
• Fermionic Linear Optics Revisited
• Anisotropy of spin splitting and spin relaxation in lateral quantum dots
• One-spin quantum logic gates from exchange interactions and a global magnetic field
• Measurement, control, and decay of quantum-dot spins
• Spin State Transfer in Laterally Coupled Quantum Dot Chains with Disorders
• Coulomb Promotion of Spin-Dependent Tunnelling
• Electron spin and charge switching in a coupled quantum dot quantum ring system
• Systematic study of carrier correlations in the electron-hole recombination dynamics of quantum dots
• Single-qubit gates and measurements in the surface acoustic wave quantum computer
• Large even-odd spacing and $g$-factor anisotropy in PbTe quantum dots
• Non-Markovian entanglement dynamics between two coupled qubits in the same environment
• Single spin universal Boolean logic
• Anisotropic electron g-factor in quantum dots with spin-orbit interaction
• Spin-Dependent Ringing and Beats in a Quantum Dot System
• Double quantum dot turnstile as an electron spin entangler
• Electrical control of phonon mediated spin relaxation rate in semiconductor quantum dots: the Rashba vs the Dresselhaus spin-orbit couplings
• Spin filling of a quantum dot derived from excited-state spectroscopy
• Superradiance-like Electron Transport through a Quantum Dot
• Entanglement between static and flying qubits in quantum wires
• Effect of intrinsic spin relaxation on the spin-dependent cotunneling transport through quantum dots
• Entanglement distillation by adiabatic passage in coupled quantum dots
• A spin pump turnstile: parametric pumping of a spin-polarized current through a nearly-closed quantum dot
• Single-electron Spin Resonance in a Quadruple Quantum Dot
• Field Dependence of the Electron Spin Relaxation in Quantum Dots
• Phonon-induced dephasing of singlet-triplet superpositions in double quantum dots without spin-orbit coupling
• Singlet-triplet relaxation in multivalley silicon single quantum dots
• Quantum Computing with Spin Qubits Interacting Through Delocalized Excitons: Overcoming Hole Mixing
• Electron-nuclei spin relaxation through phonon-assisted hyperfine interaction in a quantum dot
• Detection of the relaxation rates of an interacting quantum dot by a capacitively coupled sensor dot
• Pulsed-gate spectroscopy of single-electron spin states in bilayer graphene quantum dots
• Effect of electron-electron interaction on the phonon-mediated spin relaxation in quantum dots
• Intense terahertz laser fields on a quantum dot with Rashba spin-orbit coupling
• Strong hole-photon coupling in planar Ge for probing charge degree and strongly-correlated states
• Quantum circuits based on coded qubits encoded in chirality of electron spin complexes in triple quantum dots
• Spin Relaxation in a Quantum Dot due to Nyquist Noise
• Optical Quantum Computation with Perpetually Coupled Spins
• Interplay and optimization of decoherence mechanisms in the optical control of spin quantum bits implemented on a semiconductor quantum dot
• Spectroscopy of Quantum-Dot Orbitals with In-Plane Magnetic Fields
• Triplet-singlet relaxation in semiconductor single and double quantum dots
• Anisotropic spin relaxation in quantum dots
• Optimal geometry of lateral GaAs and Si/SiGe quantum dots for electrical control of spin qubits
• Ultrafast manipulation of electron spins in a double quantum dot device: A real-time view
• Spin-orbit coupling and electric-dipole spin resonance in a nanowire double quantum dot
• Double Occupancy Errors in Quantum Computing Operations: Corrections to Adiabaticity
• Microwave band on-chip coil technique for single electron spin resonance in a quantum dot
• Generation of spatially-separated spin entanglement in a triple quantum dot system
• Spin-orbit-coupled quantum memory of a double quantum dot
• Quantum dot defined in two-dimensional electron gas at n-AlGaAs/GaAs heterojunction: simulation of electrostatic potential and charging properties
• Control of spin relaxation in semiconductor double quantum dots
• G-factor of electrons in gate-defined quantum dots in a strong in-plane magnetic field
• Ultralong spin lifetimes in one-dimensional semiconductor nanowires
• Spin Decoherence from Hamiltonian dynamics in Quantum Dots
• Spin-dependent tunneling into an empty lateral quantum dot
• Dissipative dynamics of spins in quantum dots
• Detection of spin polarization with a side coupled quantum dot
• Zeeman energy and anomalous spin splitting in lateral GaAs quantum dots
• Quantum Hall Ferrimagnetism in lateral quantum dot molecules
• Spin relaxation rates in quasi-one-dimensional coupled quantum dots
• Correlations of spin currents through a quantum dot induced by the Kondo effect
• Random-walk topological transition revealed via electron counting
• Controlled exchange interaction for quantum logic operations with spin qubits in coupled quantum dots
• Nanomechanical read-out of a single spin
• Decay of Entanglement for Solid-State Qubits
• Parametric spin excitations in lateral quantum dots
• Non-linear and dot-dependent Zeeman splitting in GaAs/AlGaAs quantum dot arrays
• Spin-resolved spectroscopy using a quantum dot defined in InAs 2DEG
• Selective Spin Injection Controlled by Electrical way in Ferromagnet/Quantum Dot/Semiconductor system
• Nonequilibrium Kondo effect in a graphene-coupled quantum dot in the presence of a magnetic field
• Accelerated adiabatic passage of a single electron spin qubit in quantum dots
• Spin splitting of X-related donor impurity states in an AlAs barrier
• Spin Effects in a Quantum Ring
• Enhanced photon-assisted spin transport in a quantum dot attached to ferromagnetic leads
• Singlet-triplet avoided crossings and effective $g$ factor versus spatial orientation of spin-orbit-coupled quantum dots
• Wigner-molecularization-enabled dynamic nuclear field programming
• Spintronic transport and Kondo effect in quantum dots
• Spin relaxation in a GaAs quantum dot embedded inside a suspended phonon cavity
• The decay of quantum correlations between quantum dot spin qubits and the characteristics of its magnetic field dependence
• Exact Born Approximation for the Spin-Boson Model
• Excited-state spectroscopy on a quantum dot side-coupled to a quantum wire
• Evaluation of Decoherence for Quantum Computing Architectures: Qubit System Subject to Time-Dependent Control
• Coulomb-Blocked Transport Through a Quantum Dot with Spin-Split Level: Increase of Differential Conductance Peaks by Spin Relaxation
• Detecting quantum critical points at finite temperature via quantum teleportation: further models
• Charge and spin dynamics in a two dimensional electron gas
• Control of spin coherence in semiconductor double quantum dots
• Direct Entropy Measurement in a Mesoscopic Quantum System
• Electron spin tomography through counting statistics: a quantum trajectory approach
• Quantum dynamics in electron-nuclei coupled spin system in quantum dots: Bunching, revival, and quantum correlation in electron-spin measurements
• Theory of spin qubits in nanostructures
• Phonon-limited valley life times in single-particle bilayer graphene quantum dots
• Finite temperature detection of quantum critical points: a comparative study
• Isotropic and Anisotropic g-factor Corrections in GaAs Quantum Dots
• Stimulated Raman spin coherence and spin-flip induced hole burning in charged GaAs quantum dots
• Modelling Electron Spin Accumulation in a Metallic Nanoparticle
• Finite temperature detection of quantum critical points via internal quantum teleportation
• Spin-polarization in the vicinity of quantum point contact with spin-orbit interaction
• Self-sustained current oscillations in spin-blockaded quantum dots
• Entanglement and transport anomalies in nanowires
• Probing Single-Electron Spin Decoherence in Quantum Dots using Charged Excitons
• Nonequilibrium electron spin polarization in a double quantum dot. Lande mechanism
• Imaging spin-resolved cyclotron trajectories in the InSb two-dimensional electron gas
• Spin transitions induced by a magnetic field in quantum dot molecules
• A quantitative study of spin-flip co-tunneling transport in a quantum dot
• Readout of a single electron spin in a double quantum dot using a quantum point contact
• True decoherence-free-subspace derived from a semiconductor double quantum dot Heisenberg spin-trimer
• Spin-dependent coherent transport in a double quantum dot system
• Topological charge and spin pumping in a semiconductor nanowire
• Teleportation based detection of quantum critical points using small spin chains
• Direct measurement of spin-flip rates in single-electron tunneling
• Quantum Dynamics of Electron-Nuclei Coupled System in Quantum Dots
• Decoherence of Dynamically Manipulated Qubits
• Fast partial decoherence of a superconducting flux qubit in a spin bath
• Spin precession caused by spin-spin interaction between bounded electrons in quantum dots