Related Experiment Video
Updated: May 16, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Quantum control of hybrid nuclear-electronic qubits
Gavin W Morley1, Petra Lueders, M Hamed Mohammady
1Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK. gavin.morley@warwick.ac.uk
Nature Materials
|December 4, 2012
Summary
Researchers developed faster quantum control for hybrid nuclear-electronic qubits using bismuth-doped silicon. This breakthrough in solid-state spin manipulation offers potential for advanced quantum information processing.
Area of Science:
- Quantum Physics
- Materials Science
- Quantum Computing
Background:
- Pulsed magnetic resonance enables quantum state control of electronic and nuclear spins.
- Current spin qubit schemes face limitations in manipulation speed compared to coherence times.
Purpose of the Study:
- To investigate hybrid nuclear-electronic qubits for faster quantum control.
- To explore the potential of these qubits in solid-state materials for quantum information processing.
Main Methods:
- Utilized pulsed magnetic resonance for quantum control.
- Employed bismuth-doped silicon as the solid-state material.
- Investigated hybrid qubits composed of near 50:50 superpositions of electronic and nuclear spin states.
Main Results:
- Achieved quantum control over hybrid states in 32 nanoseconds (ns), significantly faster than pure nuclear states.
- Observed coherence times up to 4 milliseconds (ms), five orders of magnitude longer than manipulation times.
- Demonstrated quantitative agreement with analytical theory for resonance properties and Rabi oscillations.
Conclusions:
- Hybrid nuclear-electronic qubits in bismuth-doped silicon offer rapid quantum control.
- These solid-state qubits exhibit long coherence times, approaching the performance of ion-trap qubits.
- The findings advance the development of spin-based quantum information processing.
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