Universal coherence protection in a solid-state spin qubit
Abstract
Solid-state qubits based on the electron spin of defects in silicon carbide or diamond provide a robust and versatile architecture for developing quantum technologies. The longer the lifetime of a spin, the more manipulations and quantum calculations can be performed, making for a more powerful quantum computational platform. Miao et al. show that by dressing the spins associated with the divacancy in silicon carbide with microwave photons, the lifetime can be extended by several orders of magnitude into milliseconds (see the Perspective by Hemmer). The technique effectively creates a quiet space for the qubit, thereby protecting it from magnetic, electric, and temperature fluctuations. This approach could be applicable to other architectures and provide a universal route to protecting qubits.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 18, 2020
- Source ID
- 10.1126/science.abc5186
Entities
People
- Alexander L Crook
- Alexandre Bourassa
- Christopher P Anderson
- David Awschalom
- Gary Wolfowicz
- Hiroshi Abe
- Joseph P Blanton
- Kevin C Miao
- Takeshi Ohshima
Organizations
- Air Force Office of Scientific Research
- Argonne National Laboratory
- Japan Society for the Promotion of Science
- National Institute of Radiological Sciences
- National Science Foundation
- Office of Naval Research
- University of Chicago