[Joint CQSE & NCTS Seminar] Cryogenic RF Driver Module Design for Superconducting Quantum Computer Application

• Event Date: 2024-10-11
• Chen, Jhan Yu 陳詹喻
• Quantum Information and Quantum Computing Quantum computing and interdisciplinary applications
• Speaker: Mr. Chang-Sheng Chen (Industrial Technology Research Institute)  /  Host: Profs. Hsi-Sheng Goan & Ching-Ray Chang
  Place: Rm. 104, Chin-Pao Yang Lecture Hall, Department of Physics/CCMS, NTU

Title: [Joint CQSE & NCTS Seminar] Cryogenic RF Driver Module Design for Superconducting Quantum Computer Application
Speaker: Mr. Chang-Sheng Chen (Industrial Technology Research Institute)
Time: 2024/10/11 (Fri.) 14:20-16:20
Place: Rm. 104, Chin-Pao Yang Lecture Hall, Department of Physics/CCMS, NTU
Online: https://nationaltaiwanuniversity-zbh.my.webex.com/nationaltaiwanuniversity-zbh.my/j.php?MTID=m7601bdfa496ccaf8aac2838aab8c25f2
 

Abstract

A broadband driver module is realized for control of a single transmon Qubit. The driver module comprises a IQ up-conversion mixer designed for operation at 4 K, and is implemented using a 28-nm CMOS process as a prototype for Qubit control. The RF port of the driver module offers the conversion gain of 0.3 ± 3 dB at 4 K over the frequency range of 4 to 10 GHz, with a total DC power consumption of 11 mW. The power handling capability larger than -35 dBm enables to effective driving of the Qubit. The driver module performance is demonstrated through the successful control of a single Qubit. Furthermore, the fidelity of 99.32% is measured by injecting a 4.34-GHz pi-pulse signal with a duration of 20 ns, determined through Rabi oscillation experiments.
 

Biography

Chang-Sheng Chen is a co-project leader of low-temperature RF circuit for superconducting quantum computer application in ITRI.