Electrically Controlling Single-spin Qubits in a Continuous Microwave Field

Overview

Journal Sci Adv

Specialties Biology
Science

Date 2015 Nov 25

PMID 26601166

Citations 17

Authors

Arne Laucht

Juha T Muhonen

Fahd A Mohiyaddin

Rachpon Kalra

Juan P Dehollain

Solomon Freer

Fay E Hudson

Menno Veldhorst

Rajib Rahman

Gerhard Klimeck

Kohei M Itoh

David N Jamieson

Jeffrey C McCallum

Andrew S Dzurak

Andrea Morello

Affiliations

Soon will be listed here.

Abstract

Large-scale quantum computers must be built upon quantum bits that are both highly coherent and locally controllable. We demonstrate the quantum control of the electron and the nuclear spin of a single (31)P atom in silicon, using a continuous microwave magnetic field together with nanoscale electrostatic gates. The qubits are tuned into resonance with the microwave field by a local change in electric field, which induces a Stark shift of the qubit energies. This method, known as A-gate control, preserves the excellent coherence times and gate fidelities of isolated spins, and can be extended to arbitrarily many qubits without requiring multiple microwave sources.

Citing Articles

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Navigating the 16-dimensional Hilbert space of a high-spin donor qudit with electric and magnetic fields.

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Electric control of spin transitions at the atomic scale.

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An electrically driven single-atom "flip-flop" qubit.

Savytskyy R, Botzem T, Fernandez de Fuentes I, Joecker B, Pla J, Hudson F Sci Adv. 2023; 9(6):eadd9408.

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Single-electron spin resonance in a nanoelectronic device using a global field.

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