Towards 100 ms electron spin coherence of telecom quantum emitters in silicon
We report on Er sites in isotopically purified 28Si with millisecond spin coherence (extended to 80 ms using Alternating-Phase-CPMG sequence), homogeneous and inhomogeneous broadening below 100 kHz and 100 MHz. These Er sites have narrow linewidth optical transitions with well separated frequencies, which makes them compatible with wavelength-division multiplexing technologies. These results are promising for future quantum applications.
Authors
- Rose L. Ahlefeldt (ORCID: https://orcid.org/0000-0002-2006-2941)
- Sven Rogge (ORCID: https://orcid.org/0000-0003-1078-9482)
- Alexey Lyasota (ORCID: https://orcid.org/0000-0001-6141-2349)
- Gabriele G. de Boo (ORCID: https://orcid.org/0000-0001-7925-6540)
- Jeffrey C. McCallum (ORCID: https://orcid.org/0000-0002-6692-7728)
- Ian R. Berkman (ORCID: https://orcid.org/0000-0003-2363-5917)
- Justin C. Brown (ORCID: https://orcid.org/0000-0001-7540-4913)
- Chunming Yin (ORCID: https://orcid.org/0000-0003-0117-8225)
- John G. Bartholomew (ORCID: https://orcid.org/0000-0003-0780-2471)
- Shao Qi Lim (ORCID: https://orcid.org/0000-0002-1238-0333)
- Matthew J. Sellars (ORCID: https://orcid.org/0000-0002-0502-0444)
- Brett C. Johnson (ORCID: https://orcid.org/0000-0002-2174-4178)
- Shouyi Xie
- Bin-Bin Xu
Institutions
- University of Science and Technology of China (CN)
- The University of Sydney (AU)
- UNSW Sydney (AU)
- Centre for Quantum Computation and Communication Technology (AU)
- ARC Centre of Excellence for Engineered Quantum Systems (AU)
- RMIT University (AU)
Publication Details
- Published
- 2025-03-19
- DOI
- https://doi.org/10.1117/12.3052394
- Primary Topic
- Quantum and electron transport phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00