2019年12月1日
Ultra-long coherence times amongst room-temperature solid-state spins
Nature Communications
- 巻
- 10
- 号
- 1
- 開始ページ
- 3766
- 終了ページ
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1038/s41467-019-11776-8
© 2019, The Author(s). Solid-state single spins are promising resources for quantum sensing, quantum-information processing and quantum networks, because they are compatible with scalable quantum-device engineering. However, the extension of their coherence times proves challenging. Although enrichment of the spin-zero 12C and 28Si isotopes drastically reduces spin-bath decoherence in diamond and silicon, the solid-state environment provides deleterious interactions between the electron spin and the remaining spins of its surrounding. Here we demonstrate, contrary to widespread belief, that an impurity-doped (phosphorus) n-type single-crystal diamond realises remarkably long spin-coherence times. Single electron spins show the longest inhomogeneous spin-dephasing time (T2*≈1.5 ms) and Hahn-echo spin-coherence time (T2 ≈ 2.4 ms) ever observed in room-temperature solid-state systems, leading to the best sensitivities. The extension of coherence times in diamond semiconductor may allow for new applications in quantum technology.
- リンク情報
-
- DOI
- https://doi.org/10.1038/s41467-019-11776-8
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/31462631
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85071372454&origin=inward 本文へのリンクあり
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85071372454&origin=inward
- URL
- https://www.nature.com/articles/s41467-019-11776-8
- ID情報
-
- DOI : 10.1038/s41467-019-11776-8
- eISSN : 2041-1723
- PubMed ID : 31462631
- SCOPUS ID : 85071372454