Bulletin of the American Physical Society
2024 APS March Meeting
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session F53: Quantum Optomechanics and Transducers
8:00 AM–10:48 AM,
Tuesday, March 5, 2024
Room: 202AB
Sponsoring
Units:
DQI DCMP
Chair: Changqing Wang, Fermilab
Abstract: F53.00014 : Optomechanical quantum bus for donor spins in silicon*
10:36 AM–10:48 AM
Presenter:
Juha T Muhonen
(University of Jyväskylä)
Authors:
Juha T Muhonen
(University of Jyväskylä)
Henri Lyyra
(University of Jyväskylä)
Cliona Shakespeare
(University of Jyväskylä)
Antti Kanniainen
(University of Jyväskylä)
Arvind Kumar
(University of Jyväskylä)
Teemu Loippo
(University of Jyväskylä)
Simeoni Ahopelto
(University of Jyväskylä)
To address this, we aim to develop an optomechanical bridge between the donor spin qubits and telecom-wavelength photons. We couple the spin qubit to the mechanical motion of a nanoresonator, whose motion in turn influences the resonance frequency of an optical cavity. This allows reading out the qubit state with a telecom wavelength laser. The mechanical system can also be used to couple spins to each other in a controlled way.
In this talk, I will present the fundamental concepts for such a proposal and numerical simulations regarding its implementation in a practical system of silicon nanobeams implanted with donors. I will also present preliminary experimental data on our current progress towards characterizing the optomechanical resonators with embedded spins [1] and developing auxiliary spin readout methods [2] to be used with the nanobeams.
[1] C. Shakespeare et al., Mater. Quantum. Technol. 1, 045003 (2021)
[2] T. Loippo et al, Phys. Rev. Materials 7, 016202 (2023).
*This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (Grant Agreement No. 852428), from Academy of Finland Grant No. 321416, and from the Jenny and Antti Wihuri Foundation.
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