Fast Electrical Control of Single Electron Spins in Quantum Dots with Vanishing Influence from Nuclear Spins

Abstract

We demonstrate fast universal electrical spin manipulation with inhomogeneous magnetic fields. With fast Rabi frequency up to 127 MHz, we leave the conventional regime of strong nuclear-spin influence and observe a spin-flip fidelity > 96%, a distinct chevron Rabi pattern in the spectral-time domain, and spin resonance linewidth limited by the Rabi frequency, not by the dephasing rate. In addition, we establish fast z-rotations up to 54 MHz by directly controlling the spin phase. Our findings will significantly facilitate tomography and error correction with electron spins in quantum dots.

23 pages, 6 figures

References in corpus (8)

• Quantum Computing
• Driven coherent oscillations of a single electron spin in a quantum dot
• Coherent control of a single electron spin with electric fields
• Electrically driven single electron spin resonance in a slanting Zeeman field
• Spin-echo of a single electron spin in a quantum dot
• Universal phase shift and non-exponential decay of driven single-spin oscillations
• Theory of electric dipole spin resonance in quantum dots: Mean field theory with Gaussian fluctuations and beyond
• Threshold Error Penalty for Fault Tolerant Computation with Nearest Neighbour Communication

Cited by in corpus (30)

• Semiconductor Spin Qubits
• Review of performance metrics of spin qubits in gated semiconducting nanostructures
• Ultrafast Hole Spin Qubit with Gate-Tunable Spin-Orbit Switch
• Robust micro-magnet design for fast electrical manipulations of single spins in quantum dots
• Strong spin-orbit interaction and $g$-factor renormalization of hole spins in Ge/Si nanowire quantum dots
• Quantum nondemolition measurement of an electron spin qubit
• Coherence of a driven electron spin qubit actively decoupled from quasi-static noise
• Nonlinear response and crosstalk of electrically driven silicon spin qubits
• Electric-dipole-induced spin resonance in a lateral double quantum dot incorporating two single domain nanomagnets
• Enhanced Electron Spin Coherence in a GaAs Quantum Emitter
• Transfer of a quantum state from a photonic qubit to a gate-defined quantum dot
• Probabilistic teleportation of a quantum dot spin qubit
• Kondo effect in electrostatically defined ZnO quantum dots
• Devitalizing noise-driven instability of entangling logic in silicon devices with bias controls
• Line Shapes of Electric Dipole Spin Resonance in Pauli Spin Blockade
• Spin-Orbit Interaction Enabled High-Fidelity Two-Qubit Gates
• Formation of quantum dots in GaN/AlGaN FETs
• Visual explanations of machine learning model estimating charge states in quantum dots
• Wide dynamic range charge sensor operation by high-speed feedback control of radio-frequency reflectometry
• Optimisation of electrically-driven multi-donor quantum dot qubits
• Gate voltage dependence of noise distribution in radio-frequency reflectometry in gallium arsenide quantum dots
• Dynamics of quantum cellular automata electron transition in triple quantum dots
• Optimal design of nanomagnets for on-chip field gradients
• Formation of multiple quantum dots in ZnO heterostructures
• RFSoC-based radio-frequency reflectometry in gate-defined bilayer graphene quantum devices
• Efficient adaptive Bayesian estimation of a slowly fluctuating Overhauser field gradient
• Noise suppression and long-range exchange coupling for gallium arsenide spin qubits
• Channel length dependence of the formation of quantum dots in GaN/AlGaN FETs
• Charge state estimation in quantum dots using a Bayesian approach
• Entangling spin and charge degrees of freedom in semiconductor quantum dots