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 M74: Spin Qubit Measurement I
8:00 AM–10:48 AM,
Wednesday, March 8, 2023
Room: Room 403/404
Sponsoring
Unit:
DQI
Chair: Nathan Holman, HRL Laboratories, LLC
Abstract: M74.00007 : Universal qubit control through FPGA-accelerated qubit classification, Hamiltonian estimation and real-time feedback [Part 1]*
9:36 AM–9:48 AM
Presenter:
Joost van der Heijden
(Quantum Machines, QDevil)
Authors:
Joost van der Heijden
(Quantum Machines, QDevil)
Fabrizio Berritta
(Niels Bohr Institute, University of Copenhagen)
Torbjørn R Rasmussen
(Niels Bohr Institute, University of Copenhagen)
Fabio Ansaloni
(Quantum Machines, QDevil)
Federico Fedele
(Niels Bohr Institute, University of Copenhagen)
Saeed Fallahi
(Purdue University)
Geoffrey C Gardner
(Purdue University)
Michael J Manfra
(Purdue University)
Yonatan Cohen
(Quantum Machines)
Jonatan Kutchinsky
(Quantum Machines, QDevil)
Anasua Chatterjee
(Niels Bohr Institute, University of Copenhagen)
Ferdinand Kuemmeth
(Niels Bohr Institute, University of Copenhagen. Quantum Machines, QDevil)
Here, we read out singlet-triplet qubits in GaAs double quantum dots by radio-frequency reflectometry without analog demodulation/thresholding. Instead, qubit classification is performed in real-time on an FPGA-based pulse processor (Quantum Machines’ OPX+ [4]) using the raw reflectometry signal of the cryostat, opening the door to on-the-fly adaptive control sequences such as Hamiltonian estimation and qubit stabilization. To this end, we show how the co-integration of an OPX+ and QDevil’s QDAC [5] can be used to optimize qubit tuning voltages in real time, based on single-shot outcomes of qubit manipulations.
[1] A.M.J. Zwerver et al., Nat. Electron. 5, 184-190 (2022)
[2] S.G.J. Philips et al., Nature 609, 919-924 (2022)
[3] A. Noiri et al., Nature 601, 338–342 (2022)
[4] https://www.quantum-machines.co/opx+/
[5] https://qdevil.com/
*This project was funded within the QuantERA II Programme that has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No 101017733.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700