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 W67: Continuous-Variable Quantum Information: Hardware
3:00 PM–6:00 PM,
Thursday, March 9, 2023
Room: Room 412
Sponsoring
Unit:
DQI
Chair: Yuxin Wang, University of Chicago
Abstract: W67.00009 : Tunable coupling between superconducting 3d cavities via integrated low-loss couplers on a planar circuit*
5:00 PM–5:12 PM
Presenter:
Ziyi Zhao
(JILA)
Authors:
Ziyi Zhao
(JILA)
Eva Gurra
(University of Colorado, Boulder)
Leila Vale
(NIST Boulder)
Michael R Vissers
(NIST Boulder)
Konrad Lehnert
(University of Colorado, Boulder)
In the talk, we’ll describe the design and show preliminary data for a tunable coupling scheme between 3d superconducting microwave cavities mediated by switching elements on a planar circuit. Both the 3d cavities and the planar circuit are made monolithically, and they are coupled seamlessly to eliminate seam losses in the microwave signal lines. This coupling is achieved by superconducting loops collecting magnetic flux from the cavities, and the propagating mode is kept balanced throughout.
*This work is supported by the U.S. Air Force Office of Scientific Research Multidisciplinary Research Program of the University Research Initiative (AFOSR MURI) under Grant No. FA9550-15-1-0015 and the National Science Foundation under Grant No. 1734006
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