Detection and control of charge states in a quintuple quantum dot

Abstract

A semiconductor quintuple quantum dot with two charge sensors and an additional contact to the center dot from an electron reservoir is fabricated to demonstrate the concept of scalable architecture. This design enables formation of the five dots as confirmed by measurements of the charge states of the three nearest dots to the respective charge sensor. The gate performance of the measured stability diagram is well reproduced by a capacitance model.These results provide an important step towards realizing controllable large scale multiple quantum dot systems.

10 pages, 4 figures

References in corpus (10)

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• Prospects for Spin-Based Quantum Computing
• Fast Single-Charge Sensing with an rf Quantum Point Contact
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• Full control of quadruple quantum dot circuit charge states in the single electron regime
• Single-electron Spin Resonance in a Quadruple Quantum Dot

Cited by in corpus (27)

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• Spin entangled state transfer in quantum dot arrays: Coherent adiabatic and speed-up protocols
• Stabilization and manipulation of multispin states in quantum-dot time crystals with Heisenberg interactions
• Fast long-range state transfer in quantum dot arrays via shortcuts to adiabaticity
• Fast pulse sequences for dynamically corrected gates in single-triplet qubits
• Device Architecture for Coupling Spin Qubits Via an Intermediate Quantum State
• Coherent long-range transfer of two-electron states in ac-driven triple quantum dots
• Error correction for gate operations in systems of exchange-coupled singlet-triplet qubits in double quantum dots
• The influence of Coulomb correlations on nonequilibrium quantum transport in quadruple quantum-dot structure
• Coherent Long-Range Thermoelectrics in Nonadiabatic Driven Quantum Systems
• Towards a realistic GaAs-spin qubit device for a classical error-corrected quantum memory
• Co-tunneling spin blockade observed in a three-terminal triple quantum dot
• The walker speaks its graph: global and nearly-local probing of the tunnelling amplitude in continuous-time quantum walks
• Visual explanations of machine learning model estimating charge states in quantum dots
• Simulation of Coupling Strength of Capacitively Coupled Singlet-Triplet Qubits
• Dynamics of quantum cellular automata electron transition in triple quantum dots
• Formation of multiple quantum dots in ZnO heterostructures
• Noise suppression and long-range exchange coupling for gallium arsenide spin qubits
• Hitting time for quantum walks of identical particles
• Automatic detection of single-electron regime of quantum dots and definition of virtual gates using U-Net and clustering
• A single eletron-photon pair generation from a single polarization-entangled photon pair
• Microwave dependent quantum transport characteristics in GaN/AlGaN FETs