A few-electron quadruple quantum dot in a closed loop

Abstract

We report the realization of a quadruple quantum dot device in a square-like configuration where a single electron can be transferred on a closed path free of other electrons. By studying the stability diagrams of this system, we demonstrate that we are able to reach the few-electron regime and to control the electronic population of each quantum dot with gate voltages. This allows us to control the transfer of a single electron on a closed path inside the quadruple dot system. This work opens the route towards electron spin manipulation using spin-orbit interaction by moving an electron on complex paths free of electrons

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Cited by in corpus (43)

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• Review of performance metrics of spin qubits in gated semiconducting nanostructures
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• Coherent shuttle of electron-spin states
• Loading a quantum-dot based "Qubyte" register
• Nagaoka ferromagnetism observed in a quantum dot plaquette
• Probing quantum devices with radio-frequency reflectometry
• Fast spin information transfer between distant quantum dots using individual electrons
• Coherent long-distance displacement of individual electron spins
• A 2x2 quantum dot array with controllable inter-dot tunnel couplings
• Computer-automated tuning of semiconductor double quantum dots into the single-electron regime
• Multiplexed Charge-locking Device for Large Arrays of Quantum Devices
• Full control of quadruple quantum dot circuit charge states in the single electron regime
• Quantum walks of interacting fermions on a cycle graph
• Exact Nonadiabatic Holonomic Transformations of Spin-Orbit Qubits
• Single-electron Spin Resonance in a Quadruple Quantum Dot
• The exchange-only singlet-only spin qubit
• A triangular triple quantum dot with tunable tunnel couplings
• Effects of anisotropy and Coulomb interactions on quantum transport in a quadruple quantum-dot structure
• A linear triple quantum dot system in isolated configuration
• Nanosecond-timescale spin transfer using individual electrons in a quadruple-quantum-dot device
• Ab Initio Exact Diagonalization Simulation of the Nagaoka Transition in Quantum Dots
• An automated approach for consecutive tuning of quantum dot arrays
• Highly tunable quadruple quantum dot in a narrow bandgap semiconductor InAs nanowire
• Arbitrary qubit transformations on tuneable Rashba rings
• The influence of Coulomb correlations on nonequilibrium quantum transport in quadruple quantum-dot structure
• Transport and energetic properties of a ring of interacting spins coupled to heat baths
• Sub Decoherence Time Generation and Detection of Orbital Entanglement
• Many-Body Spin Echo
• Ground-state electronic structure of quasi-one-dimensional wires in semiconductor heterostructures
• Two-qubit gates for decoherence-free qubits using a ring exchange interaction
• Minimal motor for powering particle motion from spin imbalance
• Gate reflectometry in dense quantum dot arrays
• Long-range two-hybrid-qubit gates mediated by a microwave cavity with red sidebands
• Local magnetic moments and electronic transport in closed loop quantum dot systems: a case of quadruple quantum dot ring at and away from equilibrium
• Mapping the Chemical Potential Landscape of a Triple Quantum Dot
• Electron-Electron interactions, topological phase and optical properties of a charged artificial benzene ring
• Ground state spin and excitation energies in half-filled Lieb lattices
• Qubit transformations on Rashba ring with periodic potential
• Spin-polarized transport in quadruple quantum dots attached to ferromagnetic leads
• Exact diagonalization study of double quantum dots in parallel geometry in zero-bandwidth limit
• Long-range spin transport in asymmetric quadruple quantum dots configurations
• Certification of spin-based quantum simulators