A dressed spin qubit in silicon.
- Publisher:
- Nature Research
- Publication Type:
- Journal Article
- Citation:
- Nature Nanotechnology, 2017, 12, (1), pp. 61-66
- Issue Date:
- 2017-01
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Filename | Description | Size | |||
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1603.04800v1.pdf | 1.39 MB |
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Coherent dressing of a quantum two-level system provides access to a new quantum system with improved properties-a different and easily tunable level splitting, faster control and longer coherence times. In our work we investigate the properties of the dressed, donor-bound electron spin in silicon, and assess its potential as a quantum bit in scalable architectures. The two dressed spin-polariton levels constitute a quantum bit that can be coherently driven with an oscillating magnetic field, an oscillating electric field, frequency modulation of the driving field or a simple detuning pulse. We measure coherence times of and , one order of magnitude longer than those of the undressed spin. Furthermore, the use of the dressed states enables coherent coupling of the solid-state spins to electric fields and mechanical oscillations.
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