Equivalence of flexible stripline and coaxial cables for superconducting qubit control and readout pulses

被引：6

作者：

Monarkha, V. Y. ^{[1
]}

Simbierowicz, S. ^{[1
]}

Borrelli, M. ^{[1
]}

van Gulik, R. ^{[2
]}

Drobotun, N. ^{[2
]}

Kuitenbrouwer, D. ^{[2
]}

Bouman, D. ^{[2
]}

Datta, D. ^{[3
]}

Eskelinen, P. ^{[3
]}

Mannila, E. ^{[3
]}

Kaikkonen, J. ^{[3
]}

Vesterinen, V. ^{[3
]}

Govenius, J. ^{[3
]}

Lake, R. E. ^{[1
]}

机构：

[1] Bluefors Oy, Arinatie 10, Helsinki 00370, Finland

[2] Delft Circuits, Delft, Netherlands

[3] VTT Tech Res Ctr Finland Ltd, QTF Ctr Excellence, POB 1000, Espoo 02044, Finland

来源：

APPLIED PHYSICS LETTERS | 2024年 / 124卷 / 22期

关键词：

All Open Access; Hybrid Gold;

D O I：

10.1063/5.0203101

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a comparative study on microwave control lines for a transmon qubit using (i) flexible stripline transmission lines and (ii) semi-rigid coaxial cables. During each experiment, we performed repeated measurements of the energy relaxation and coherence times of a transmon qubit using one of the wiring configurations. Each measurement run spanned 70-250 h of the measurement time, and four separate cooldowns were performed so that each configuration could be tested twice. From these datasets, we observe that changing the microwave control lines from coaxial cables to flexible stripline transmission lines does not have a measurable effect on coherence compared to thermal cycling the system or random coherence fluctuations. Our results open up the possibility of large-scale integration of qubit control lines with integrated component with planar layouts on flexible substrate.

引用

页数：6