We have been studying a superconducting quantum-computing system where superconducting qubits are controlled and read out by rapid single-flux- quantum (RSFQ) circuits. In this study, we designed and fabricated an RSFQ microwave chopper, which turns on and off an externally applied microwave to control qubit states with the time resolution of sub-nanosecond. The chopper is implemented in a microwave module and mounted in a dilution refrigerator. We tested the microwave chopper at 4.2 K. The amplitude of the output microwave was approximately 100 µV which is much larger than that of previously designed chopper. We also confirmed that the irradiation time can be controlled by RSFQ control circuits.
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Copy
Naoki TAKEUCHI, Yuki YAMANASHI, Nobuyuki YOSHIKAWA, "Design and Implementation of RSFQ Microwave Choppers for the Superconducting Quantum-Computing System" in IEICE TRANSACTIONS on Electronics,
vol. E93-C, no. 4, pp. 458-462, April 2010, doi: 10.1587/transele.E93.C.458.
Abstract: We have been studying a superconducting quantum-computing system where superconducting qubits are controlled and read out by rapid single-flux- quantum (RSFQ) circuits. In this study, we designed and fabricated an RSFQ microwave chopper, which turns on and off an externally applied microwave to control qubit states with the time resolution of sub-nanosecond. The chopper is implemented in a microwave module and mounted in a dilution refrigerator. We tested the microwave chopper at 4.2 K. The amplitude of the output microwave was approximately 100 µV which is much larger than that of previously designed chopper. We also confirmed that the irradiation time can be controlled by RSFQ control circuits.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E93.C.458/_p
Copy
@ARTICLE{e93-c_4_458,
author={Naoki TAKEUCHI, Yuki YAMANASHI, Nobuyuki YOSHIKAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Design and Implementation of RSFQ Microwave Choppers for the Superconducting Quantum-Computing System},
year={2010},
volume={E93-C},
number={4},
pages={458-462},
abstract={We have been studying a superconducting quantum-computing system where superconducting qubits are controlled and read out by rapid single-flux- quantum (RSFQ) circuits. In this study, we designed and fabricated an RSFQ microwave chopper, which turns on and off an externally applied microwave to control qubit states with the time resolution of sub-nanosecond. The chopper is implemented in a microwave module and mounted in a dilution refrigerator. We tested the microwave chopper at 4.2 K. The amplitude of the output microwave was approximately 100 µV which is much larger than that of previously designed chopper. We also confirmed that the irradiation time can be controlled by RSFQ control circuits.},
keywords={},
doi={10.1587/transele.E93.C.458},
ISSN={1745-1353},
month={April},}
Copy
TY - JOUR
TI - Design and Implementation of RSFQ Microwave Choppers for the Superconducting Quantum-Computing System
T2 - IEICE TRANSACTIONS on Electronics
SP - 458
EP - 462
AU - Naoki TAKEUCHI
AU - Yuki YAMANASHI
AU - Nobuyuki YOSHIKAWA
PY - 2010
DO - 10.1587/transele.E93.C.458
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E93-C
IS - 4
JA - IEICE TRANSACTIONS on Electronics
Y1 - April 2010
AB - We have been studying a superconducting quantum-computing system where superconducting qubits are controlled and read out by rapid single-flux- quantum (RSFQ) circuits. In this study, we designed and fabricated an RSFQ microwave chopper, which turns on and off an externally applied microwave to control qubit states with the time resolution of sub-nanosecond. The chopper is implemented in a microwave module and mounted in a dilution refrigerator. We tested the microwave chopper at 4.2 K. The amplitude of the output microwave was approximately 100 µV which is much larger than that of previously designed chopper. We also confirmed that the irradiation time can be controlled by RSFQ control circuits.
ER -