Transform-limited photons from a coherent tin-vacancy spin in diamond
Name
PhysRevLett.124.023602.pdf
Size
631.04 KB
Format
Adobe PDF
Checksum (MD5)
5da2b67963a9a24df9f177046c7dd488
Author(s)
Trusheim, Matthew E.
Pingault, Benjamin
Wan, Noel H.
Gündoğan, Mustafa
De Santis, Lorenzo
Debroux, Romain
Gangloff, Dorian
Purser, Carola
Chen, Kevin C.
Walsh, Michael
Date Issued
January 14, 2020
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Trusheim, Matthew E., et al., "Transform-limited photons from a coherent tin-vacancy spin in diamond." Physical Review Letters 124, 1 (Jan.2020): no. 023602 doi 10.1103/PhysRevLett.124.023602 ©2020 Author(s)
Version
Final published version
Abstract
Solid-state quantum emitters that couple coherent optical transitions to long-lived spin qubits are essential for quantum networks. Here we report on the spin and optical properties of individual tin-vacancy (SnV) centers in diamond nanostructures. Through cryogenic magneto-optical and spin spectroscopy, we verify the inversion-symmetric electronic structure of the SnV, identify spin-conserving and spin-flipping transitions, characterize transition linewidths, measure electron spin lifetimes, and evaluate the spin dephasing time. We find that the optical transitions are consistent with the radiative lifetime limit even in nanofabricated structures. The spin lifetime is phonon limited with an exponential temperature scaling leading to T[subscript 1]>10 ms, and the coherence time, T[subscript 2 under superscript *] reaches the nuclear spin-bath limit upon cooling to 2.9 K. These spin properties exceed those of other inversion-symmetric color centers for which similar values require millikelvin temperatures. With a combination of coherent optical transitions and long spin coherence without dilution refrigeration, the SnV is a promising candidate for feasable and scalable quantum networking applications. ©2020
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.124.023602
