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 G74: Novel Spin Qubit Materials and Technologies I
11:30 AM–2:18 PM,
Tuesday, March 7, 2023
Room: Room 403/404
Sponsoring
Unit:
DQI
Chair: J. Carlos Egues, University of Basel
Abstract: G74.00011 : Heralded Entanglement of Single Rare-Earth Ion Qubits
1:54 PM–2:06 PM
Presenter:
Andrei Ruskuc
(Caltech)
Authors:
Andrei Ruskuc
(Caltech)
Chun-Ju Wu
(Caltech)
Joonhee Choi
(Caltech)
Sophie Hermans
(California Institute of Technology)
Andrei Faraon
(Caltech)
In this talk we demonstrate entanglement of two spectrally distinguishable 171Yb qubits in a single cavity. This is achieved with a single photon heralding protocol and frequency erasure via high-resolution detection of the photon emission time. The random quantum phase generated by the stochastic emission process is corrected in real-time, enabling preparation of a deterministic spin-entangled state. The narrow optical inhomogeneous distribution of these emitters (200MHz) enables any-to-any connectivity in a scalable fashion. Furthermore, we implement an optical dynamical decoupling protocol to boost the entanglement rate. These results showcase single rare-earth ions as a promising platform for the future quantum internet.
[1] Kindem, Ruskuc et al. Nature, 580, 201 (2020)
[2] Ruskuc et al. Nature, 602, 408 (2022)
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