| Presentation | 2023-08-08 Amplitude-controllable microwave pulse generator for qubit control using single-flux-quantum circuits with a low critical-current-density Josephson process Shu Sasaki, Naoki Takeuchi, Yuki Yamanashi, Nobuyuki Yoshikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Quantum computers can solve astronomical time-consuming calculations at high speed by using qubits representing the superposition of two states, 0 and 1, for operations. Though research teams worldwide are developing large-scale quantum computers, one obstacle that hinders the scalability of quantum computing systems is that the heat load limits the number of qubits implemented through the microwave cable that connects room temperature and cryogenic temperatures. We propose an amplitude-controllable microwave pulse generator using single flux quantum circuits to realize a qubit control circuit that can operate at cryogenic temperatures. We have designed and fabricated the amplitude-controllable microwave pulse generator using a low critical current density Josephson integrated circuit process of Jc=1 kA/cm2 for low power consumption. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Quantum computing / Quantum bit / Single Flux Quantum circuit / Josephson integrated circuits |
| Paper # | SCE2023-4 |
| Date of Issue | 2023-08-01 (SCE) |
| Conference Information | |
| Committee | SCE |
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| Conference Date | 2023/8/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yokohama National Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Shigehito Miki(NICT) |
| Vice Chair | |
| Secretary | (Kanazawa Inst. of Tech.) |
| Assistant | Hiroyuki Akaike(Daido Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Superconductive Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Amplitude-controllable microwave pulse generator for qubit control using single-flux-quantum circuits with a low critical-current-density Josephson process |
| Sub Title (in English) | |
| Keyword(1) | Quantum computing |
| Keyword(2) | Quantum bit |
| Keyword(3) | Single Flux Quantum circuit |
| Keyword(4) | Josephson integrated circuits |
| 1st Author's Name | Shu Sasaki |
| 1st Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| 2nd Author's Name | Naoki Takeuchi |
| 2nd Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| 3rd Author's Name | Yuki Yamanashi |
| 3rd Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| 4th Author's Name | Nobuyuki Yoshikawa |
| 4th Author's Affiliation | Yokohama National University(Yokohama National Univ.) |
| Date | 2023-08-08 |
| Paper # | SCE2023-4 |
| Volume (vol) | vol.123 |
| Number (no) | SCE-153 |
| Page | pp.pp.17-21(SCE), |
| #Pages | 5 |
| Date of Issue | 2023-08-01 (SCE) |