Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session GG02: V: Superconducting Qubits and Systems
5:30 AM–7:18 AM,
Wednesday, March 6, 2024
Room: Virtual Room 02
Sponsoring
Units:
DQI DCMP DMP
Chair: Benjamin Lienhard, Princeton University; Moritz Singer, TU Munich
Abstract: GG02.00004 : SFQ-based asynchronous persistent-current biasing grid for tunable-coupler QPU
6:06 AM–6:18 AM
Presenter:
Ugur Yilmaz
(IQM Germany GmbH)
Authors:
Ugur Yilmaz
(IQM Germany GmbH)
Pasi Lähteenmäki
(IQM Finland OY)
Aleksei Sharafiev
(IQM Germany GmbH)
Olli-Pentti Saira
(IQM Finland OY)
In this work, we present a single-flux quantum circuit that allows row and column addressing of persistent current cells. Flux quanta in each cell can be added or subtracted at integer precision [2]. The total number of control wires can be reduced from N to , where N is the number of flux-tunable elements on the QPU. Below 4K, we have measured flux tunability over a full range of in a galvanically separated SQUID loop with 7 bits of resolution. Independent addressing is also demonstrated. Finally, we will discuss the interfacing of this type of persistent current modules with a QPU.
[1] R. N. Das et al., "Large Scale Cryogenic Integration Approach for Superconducting High-Performance Computing," 2017 IEEE 67th Electronic Components and Technology Conference (ECTC), Orlando, FL, USA, 2017, pp. 675-683, doi: 10.1109/ECTC.2017.54.
[2] Tsuga Yuto, Yuki Yamanashi, and Nobuyuki Yoshikawa. "Asynchronous digital SQUID magnetometer with an on-chip magnetic feedback for improvement of magnetic resolution." IEEE transactions on applied superconductivity 23.3 (2012): 1601405-1601405.
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