TY - GEN
T1 - RF antenna design for 3D quantum memories
AU - Deppe, Frank
AU - Xie, Edwar
AU - Fedorov, Kirill G.
AU - Andersson, Gustav
AU - Muller, Jonathan
AU - Marx, Achim
AU - Gross, Rudolf
N1 - Publisher Copyright:
© 2021 Applied Computational Electromagnetics Society.
PY - 2021/8/1
Y1 - 2021/8/1
N2 - 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.
AB - 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.
KW - Quantum communication
KW - Quantum computing
KW - Quantum memory
KW - RF antenna
KW - Superconducting quantum circuits
UR - http://www.scopus.com/inward/record.url?scp=85115913727&partnerID=8YFLogxK
U2 - 10.1109/ACES53325.2021.00104
DO - 10.1109/ACES53325.2021.00104
M3 - Conference contribution
AN - SCOPUS:85115913727
T3 - 2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021
BT - 2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 International Applied Computational Electromagnetics Society Symposium, ACES 2021
Y2 - 1 August 2021 through 5 August 2021
ER -