Controlling the coherence of a diamond spin qubit through its strain environment

Young-Ik Sohn, Srujan Meesala, Benjamin Pingault, Haig A. Atikian, Jeffrey Holzgrafe, Mustafa Gündoğan, Camille Stavrakas, Megan J. Stanley, Alp Sipahigil, Joonhee Choi, Mian Zhang, Jose L. Pacheco, John Abraham, Edward Bielejec, Mikhail D. Lukin, Mete Atatüre and Marko Lončar ()
Additional contact information
Young-Ik Sohn: Harvard University
Srujan Meesala: Harvard University
Benjamin Pingault: University of Cambridge
Haig A. Atikian: Harvard University
Jeffrey Holzgrafe: Harvard University
Mustafa Gündoğan: University of Cambridge
Camille Stavrakas: University of Cambridge
Megan J. Stanley: University of Cambridge
Alp Sipahigil: Harvard University
Joonhee Choi: Harvard University
Mian Zhang: Harvard University
Jose L. Pacheco: Sandia National Laboratories
John Abraham: Sandia National Laboratories
Edward Bielejec: Sandia National Laboratories
Mikhail D. Lukin: Harvard University
Mete Atatüre: University of Cambridge
Marko Lončar: Harvard University

Nature Communications, 2018, vol. 9, issue 1, 1-6

Abstract: Abstract The uncontrolled interaction of a quantum system with its environment is detrimental for quantum coherence. For quantum bits in the solid state, decoherence from thermal vibrations of the surrounding lattice can typically only be suppressed by lowering the temperature of operation. Here, we use a nano-electro-mechanical system to mitigate the effect of thermal phonons on a spin qubit – the silicon-vacancy colour centre in diamond – without changing the system temperature. By controlling the strain environment of the colour centre, we tune its electronic levels to probe, control, and eventually suppress the interaction of its spin with the thermal bath. Strain control provides both large tunability of the optical transitions and significantly improved spin coherence. Finally, our findings indicate the possibility to achieve strong coupling between the silicon-vacancy spin and single phonons, which can lead to the realisation of phonon-mediated quantum gates and nonlinear quantum phononics.

Date: 2018
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-018-04340-3 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04340-3

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-018-04340-3

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().