Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session K65: Optical Physics
3:00 PM–5:36 PM,
Tuesday, March 7, 2023
Room: Room 414
Sponsoring
Unit:
DAMOP
Chair: Li He, University of Pennsylvania
Abstract: K65.00007 : Measurements of the Optical Coherence of the SnV in Nanostructured Diamond*
4:12 PM–4:24 PM
Presenter:
Ryan A Parker
(University of Cambridge)
Author:
Ryan A Parker
(University of Cambridge)
Collaboration:
EU Quantum Flagship
However, despite this promise, in order to realise quantum-networking applications the intrinsic, optical, coherence of the SnV is yet to be shown through Hong-Ou-Mandel (HOM) spectroscopy. In this work, we report on the excited state coherence of the SnV and show that the T2 = 2T1 limit is easily reached given simple Hahn-Echo rephasing protocols. This result further highlights that the SnV is a promising candidate for quantum-networking applications as the maximum achievable HOM visibility is not intrinsically limited by the excited state. As such, these preliminary results highlight that the SnV is a realistic platform on which to build photonic cluster states, and similar photonics-based quantum resources, for high fidelity, error-tolerant, quantum communication.
[1] Debroux, R., Michaels, C. P., Purser, C. M., Wan, N., Trusheim, M. E., Martínez, J. A., & Atatüre, M. (2021). Quantum control of the tin-vacancy spin qubit in diamond. Physical Review X, 11(4), 041041.
*R.A.P. acknowledges funding from the General Sir John Monash Foundation
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