Single-Spin CCD

Abstract

Spin-based electronics or spintronics relies on the ability to store, transport and manipulate electron spin polarization with great precision. In its ultimate limit, information is stored in the spin state of a single electron, at which point also quantum information processing becomes a possibility. Here we demonstrate the manipulation, transport and read-out of individual electron spins in a linear array of three semiconductor quantum dots. First, we demonstrate single-shot read-out of three spins with fidelities of 97% on average, using an approach analogous to the operation of a charge-coupled-device (CCD). Next, we perform site-selective control of the three spins thereby writing the content of each pixel of this "Single-Spin CCD". Finally, we show that shuttling an electron back and forth in the array hundreds of times, covering a cumulative distance of 80 $\mu$m, has negligible influence on its spin projection. Extrapolating these results to the case of much larger arrays, points at a diverse range of potential applications, from quantum information to imaging and sensing.

References in corpus (7)

• Single-shot read-out of an individual electron spin in a quantum dot
• Coherent control of a single electron spin with electric fields
• An addressable quantum dot qubit with fault-tolerant control fidelity
• Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits
• Suppressing qubit dephasing using real-time Hamiltonian estimation
• Spin relaxation anisotropy in a GaAs quantum dot
• Charge State Hysteresis in Semiconductor Quantum Dots

Cited by in corpus (86)

• Semiconductor Spin Qubits
• Interfacing spin qubits in quantum dots and donors - hot, dense and coherent
• A Coherent Spin-Photon Interface in Silicon
• Silicon CMOS architecture for a spin-based quantum computer
• Quantum simulation of a Fermi-Hubbard model using a semiconductor quantum dot array
• Scalable gate architecture for densely packed semiconductor spin qubits
• Shuttling a single charge across a one-dimensional array of silicon quantum dots
• A Crossbar Network for Silicon Quantum Dot Qubits
• Quantum error correction with silicon spin qubits
• Review of performance metrics of spin qubits in gated semiconducting nanostructures
• Gate fidelity and coherence of an electron spin in a Si/SiGe quantum dot with micromagnet
• Quantum Dot Arrays in Silicon and Germanium
• Coherent shuttle of electron-spin states
• Loading a quantum-dot based "Qubyte" register
• Coherent spin qubit transport in silicon
• Tunable superconducting coupling of quantum dots via Andreev bound states in semiconductor-superconductor nanowires
• Conveyor-mode single-electron shuttling in Si/SiGe for a scalable quantum computing architecture
• Coherent spin state transfer via Heisenberg exchange
• Fast spin information transfer between distant quantum dots using individual electrons
• Spiderweb array: A sparse spin-qubit array
• Coherent transfer of quantum information in silicon using resonant SWAP gates
• Coherent spin-exchange via a quantum mediator
• Coherent long-distance displacement of individual electron spins
• Automated tuning of inter-dot tunnel couplings in quantum dot arrays
• Blueprint of a scalable spin qubit shuttle device for coherent mid-range qubit transfer in disordered Si/SiGe/SiO${}_2$
• Single-spin qubits in isotopically enriched silicon at low magnetic field
• The SpinBus Architecture: Scaling Spin Qubits with Electron Shuttling
• Hyperfine-phonon spin relaxation in a single-electron GaAs quantum dot
• Coupling a single electron spin to a microwave resonator: Controlling transverse and longitudinal couplings
• Site-selective quantum control in an isotopically enriched 28Si/SiGe quadruple quantum dot
• Adiabatic quantum state transfer in a semiconductor quantum-dot spin chain
• Computer-automated tuning of semiconductor double quantum dots into the single-electron regime
• Shuttling an electron spin through a silicon quantum dot array
• Quantum simulation of antiferromagnetic Heisenberg chain with gate-defined quantum dots
• Transversal Clifford gates on folded surface codes
• Tuning methods for semiconductor spin--qubits
• Negative spin exchange in a multielectron quantum dot
• Gate-Controlled Quantum Dots Based on Two-Dimensional Materials
• Qubit gates with simultaneous transport in double quantum dots
• Tunable coupling and isolation of single electrons in silicon metal-oxide-semiconductor quantum dots
• Fractional boundary charges in quantum dot arrays with density modulation
• Long-Distance Superexchange between Semiconductor Quantum-Dot Electron Spins
• Coherent multi-spin exchange coupling in a quantum-dot spin chain
• Rapid single-shot parity spin readout in a silicon double quantum dot with fidelity exceeding 99 %
• CMOS Position-Based Charge Qubits: Theoretical Analysis of Control and Entanglement
• Interplay of charge noise and coupling to phonons in adiabatic electron transfer between quantum dots
• Adiabatic electron charge transfer between two quantum dots in presence of 1/f noise
• Conditional Teleportation of Quantum-Dot Spin States
• A fast quantum interface between different spin qubit encodings
• High-fidelity single-spin shuttling in silicon
• Acoustic Traps and Lattices for Electrons in Semiconductors
• Floquet-Enhanced Spin Swaps
• Coherent transport in a linear triple quantum dot made from a pure-phase InAs nanowire
• A linear triple quantum dot system in isolated configuration
• Nanosecond-timescale spin transfer using individual electrons in a quadruple-quantum-dot device
• Coherent transport of spin by adiabatic passage in quantum dot arrays
• Transporting a single-spin qubit through a double quantum dot
• Spin-selective electron transfer in quantum dot array
• Electron cascade for spin readout
• Tunneling statistics for analysis of spin-readout fidelity
• Reconfigurable quadruple quantum dots in a silicon nanowire transistor
• Jellybean quantum dots in silicon for qubit coupling and on-chip quantum chemistry
• Current rectification in double quantum dot through fermionic reservoir engineering
• Non-linear and dot-dependent Zeeman splitting in GaAs/AlGaAs quantum dot arrays
• Democratizing Spin Qubits
• Quantum dot state initialization by control of tunneling rates
• Long-range exchange interaction between spin qubits mediated by a superconducting link at finite magnetic field
• Black holes as Andreev reflecting mirrors
• Flying Spin Qubits in Quantum Dot Arrays Driven by Spin-Orbit Interaction
• Voltage-controlled Hubbard spin transistor
• Extracting inter-dot tunnel couplings between few donor quantum dots in silicon
• Low-Dissipation Data Bus via Coherent Quantum Dynamics
• Near-Term Spin-Qubit Architecture Design via Multipartite Maximally-Entangled States
• Developing high-impedance superconducting resonators and on-chip filters for semiconductor quantum dot circuit quantum electrodynamics
• Mapping the Chemical Potential Landscape of a Triple Quantum Dot
• Electron qubits surfing on acoustic waves: review of recent progress
• Tailoring potentials by simulation-aided design of gate layouts for spin qubit applications
• Nonadiabatic quantum control of quantum dot arrays with fixed exchange using Cartan decomposition
• Single electron routing in a silicon quantum-dot array
• Electron Charge Sensor with Hole Current Operating at Cryogenic Temperature
• Long-range Entanglement of Kondo Clouds in Open Triple Quantum Dots
• Electrical Interconnects for Silicon Spin Qubits
• Entangling nuclear spins in distant quantum dots via an electron bus
• High-fidelity spin readout via the double latching mechanism
• Charge-induced energy shift of a single-spin qubit under a magnetic-field gradient
• Interaction without back-action in the context of quantum manipulation