Optical observation of single spins in silicon

Daniel B. Higginbottom, Alexander T. K. Kurkjian, Camille Chartrand, Moein Kazemi, Nicholas A. Brunelle, Evan R. MacQuarrie, James R. Klein, Nicholas R. Lee-Hone, Jakub Stacho, Myles Ruether, Camille Bowness, Laurent Bergeron, Adam DeAbreu, Stephen R. Harrigan, Joshua Kanaganayagam, Danica W. Marsden, Timothy S. Richards, Leea A. Stott, Sjoerd Roorda, Kevin J. Morse, Michael L. W. Thewalt and Stephanie Simmons ()
Additional contact information
Daniel B. Higginbottom: Simon Fraser University
Alexander T. K. Kurkjian: Simon Fraser University
Camille Chartrand: Simon Fraser University
Moein Kazemi: Simon Fraser University
Nicholas A. Brunelle: Simon Fraser University
Evan R. MacQuarrie: Simon Fraser University
James R. Klein: Simon Fraser University
Nicholas R. Lee-Hone: Simon Fraser University
Jakub Stacho: Simon Fraser University
Myles Ruether: Simon Fraser University
Camille Bowness: Simon Fraser University
Laurent Bergeron: Simon Fraser University
Adam DeAbreu: Simon Fraser University
Stephen R. Harrigan: Simon Fraser University
Joshua Kanaganayagam: Simon Fraser University
Danica W. Marsden: Simon Fraser University
Timothy S. Richards: Simon Fraser University
Leea A. Stott: Simon Fraser University
Sjoerd Roorda: University of Montréal
Kevin J. Morse: Simon Fraser University
Michael L. W. Thewalt: Simon Fraser University
Stephanie Simmons: Simon Fraser University

Nature, 2022, vol. 607, issue 7918, 266-270

Abstract: Abstract The global quantum internet will require long-lived, telecommunications-band photon–matter interfaces manufactured at scale1. Preliminary quantum networks based on photon–matter interfaces that meet a subset of these demands are encouraging efforts to identify new high-performance alternatives2. Silicon is an ideal host for commercial-scale solid-state quantum technologies. It is already an advanced platform within the global integrated photonics and microelectronics industries, as well as host to record-setting long-lived spin qubits3. Despite the overwhelming potential of the silicon quantum platform, the optical detection of individually addressable photon–spin interfaces in silicon has remained elusive. In this work, we integrate individually addressable ‘T centre’ photon–spin qubits in silicon photonic structures and characterize their spin-dependent telecommunications-band optical transitions. These results unlock immediate opportunities to construct silicon-integrated, telecommunications-band quantum information networks.

Date: 2022
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DOI: 10.1038/s41586-022-04821-y

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