A dressed spin qubit in silicon

Arne Laucht, Rachpon Kalra, Stephanie Simmons, Juan P. Dehollain, Juha T. Muhonen, Fahd A. Mohiyaddin, Solomon Freer, Fay E. Hudson, Kohei M. Itoh, David N. Jamieson, Jeffrey C. McCallum, Andrew S. Dzurak, A. Morello

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)61-66
Number of pages6
JournalNature Nanotechnology
Volume12
Issue number1
DOIs
Publication statusPublished - 2017 Jan 10

ASJC Scopus subject areas

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A dressed spin qubit in silicon'. Together they form a unique fingerprint.

  • Cite this

    Laucht, A., Kalra, R., Simmons, S., Dehollain, J. P., Muhonen, J. T., Mohiyaddin, F. A., Freer, S., Hudson, F. E., Itoh, K. M., Jamieson, D. N., McCallum, J. C., Dzurak, A. S., & Morello, A. (2017). A dressed spin qubit in silicon. Nature Nanotechnology, 12(1), 61-66. https://doi.org/10.1038/nnano.2016.178