Pulse-density-modulated microwave generator using single-flux-quantum circuits for controlling qubits
Superconducting qubits are generally controlled by irradiation with microwave pulses. We propose a 5-GHz-range microwave pulse generator based on pulse density modulation for controlling qubits using single-flux-quantum (SFQ) circuits. The proposed microwave pulse generator comprises a 100-GHz circu...
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| Veröffentlicht in: | IEEE transactions on applied superconductivity 2023-08, Vol.33 (5), p.1-5 |
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| container_title | IEEE transactions on applied superconductivity |
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| creator | Kunihiro, Akira Yamanashi, Yuki Yoshikawa, Nobuyuki |
| description | Superconducting qubits are generally controlled by irradiation with microwave pulses. We propose a 5-GHz-range microwave pulse generator based on pulse density modulation for controlling qubits using single-flux-quantum (SFQ) circuits. The proposed microwave pulse generator comprises a 100-GHz circular shift register and a band-pass filter (BPF). In this study, we investigated the relationship between the target envelope of the microwave amplitude and the SFQ pulse density based on the transfer function for the BPF and the frequency spectrum of an SFQ pulse. We implemented a 64-bit circular shift register and demonstrated its operation up to 68 GHz. |
| doi_str_mv | 10.1109/TASC.2023.3255182 |
| format | Article |
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We propose a 5-GHz-range microwave pulse generator based on pulse density modulation for controlling qubits using single-flux-quantum (SFQ) circuits. The proposed microwave pulse generator comprises a 100-GHz circular shift register and a band-pass filter (BPF). In this study, we investigated the relationship between the target envelope of the microwave amplitude and the SFQ pulse density based on the transfer function for the BPF and the frequency spectrum of an SFQ pulse. We implemented a 64-bit circular shift register and demonstrated its operation up to 68 GHz.</description><subject>Bandpass filters</subject><subject>Circuits</subject><subject>Clocks</subject><subject>Density</subject><subject>Frequency spectrum</subject><subject>Generators</subject><subject>Josephson junctions</subject><subject>Microwave circuits</subject><subject>Microwave filters</subject><subject>microwave generator</subject><subject>Microwave integrated circuits</subject><subject>Microwave theory and techniques</subject><subject>Pulse generators</subject><subject>Qubit</subject><subject>qubit control</subject><subject>Qubits (quantum computing)</subject><subject>RSFQ circuit</subject><subject>SFQ</subject><subject>Shift registers</subject><subject>superconducting integrated circuits</subject><subject>Transfer functions</subject><issn>1051-8223</issn><issn>1558-2515</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkE1LAzEQhoMoWKs_QPCw4Dk1302OpfgFgoL1HLLZpGzZ7rb5UPvvzdIevMwMM8_My7wA3GI0wxiph9XiczkjiNAZJZxjSc7ABHMuIeGYn5cacQwlIfQSXMW4QQgzyfgEuI_cRQcb18c2HeB2aHJnkmuqbWvD8GO-XbV2vQsmDaHKse3X1Rg6B32Xf-E-mz7lbWXbYHObYuULZoc-haHrRnif69K-BhfeFJ2bU56Cr6fH1fIFvr0_vy4Xb9AShRIUSiLCG2WE8QYhNaeucTUzhCtGeW2tsjWphWRMGoE8mXvvPBWNF4RZIhGdgvvj3V0Y9tnFpDdDDn2R1GSuKEGSCVEofKTKhzEG5_UutFsTDhojPbqpRzf16KY-uVl27o47rXPuH49EmSv6BzcWc2M</recordid><startdate>20230801</startdate><enddate>20230801</enddate><creator>Kunihiro, Akira</creator><creator>Yamanashi, Yuki</creator><creator>Yoshikawa, Nobuyuki</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on applied superconductivity, 2023-08, Vol.33 (5), p.1-5 |
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| language | eng |
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| source | IEEE Electronic Library Online |
| subjects | Bandpass filters Circuits Clocks Density Frequency spectrum Generators Josephson junctions Microwave circuits Microwave filters microwave generator Microwave integrated circuits Microwave theory and techniques Pulse generators Qubit qubit control Qubits (quantum computing) RSFQ circuit SFQ Shift registers superconducting integrated circuits Transfer functions |
| title | Pulse-density-modulated microwave generator using single-flux-quantum circuits for controlling qubits |
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