RF antenna design for 3D quantum memories
Paper in proceeding, 2021
A quantum memory has to meet the conflicting requirements of strong coupling for fast readout and weak coupling for long storage. Multimode rectangular superconducting 3D cavities are known to satisfy both properties. Here, we systematically study the external coupling to the two lowest-frequency modes of an aluminum cavity. First, we introduce a general analytical scheme to describe the capacitive coupling of the antenna pin and validate this model experimentally. On this basis, we engineer an antenna which is overcoupled to the first mode, but undercoupled to the second mode.
Quantum memory
Superconducting quantum circuits
RF antenna
Quantum communication
Quantum computing
Author
F. Deppe
Technical University of Munich
MCQST
E. Xie
Technical University of Munich
K. G. Fedorov
Technical University of Munich
Gustav Andersson
Technical University of Munich
Chalmers, Microtechnology and Nanoscience (MC2), Quantum Technology
Jonathan Muller
Technical University of Munich
Toshiba Corporation
A. Marx
Walther-Meissner-Institute for Low Temperature Research
R. Gross
Technical University of Munich
MCQST
2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021
9781733509626 (ISBN)
2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021
Virtual, Hamilton, Canada,
Virtual, Hamilton, Canada,
Subject Categories (SSIF 2011)
Applied Mechanics
Other Physics Topics
Other Electrical Engineering, Electronic Engineering, Information Engineering