13:30 〜 15:30
▲ [15p-PB01-1] Improvement on the cryogenic circuit with tunnel-diode for qubit read-out
キーワード：resonant tunnel diode, cryogenic
One of the key features required to realize a fault-tolerant scalable quantum computer is the integration of integration of reliable and energy-efficient electronics for qubit control and readout. Recently, qubit control electronics have been successfully integrated using cryogenic CMOS technology [1,2,3] and superconducting Josephson junctions [4]. Compared to cryogenic CMOS devices and superconducting Josephson junction circuits, the tunnel-diode circuits have a relatively small device sizes (~ 4 cm2) and lower power dissipation (~1μW).
We present recent development and experimental result of readout electronics using tunnel-diode cryogenic circuit. The operating temperature range between 4 K to 30 mK. The oscillating frequency reaches >100 MHz. The phase noise was measured to be -20 dBc/Hz at offset frequency 10 Hz and -80 dBc/Hz at offset frequency 1 MHz.
[1] J. P. G. Van Dijk, et al., IEEE J. Solid-State Circuits 55, 2930 (2020).
[2] J. C. Bardin, et al., IEEE J. Solid-State Circuits 54, 3043 (2019).
[3] S. Pauka, et al., Nat. Electron, 4, 64 (2021).
[4] K. L. Howe, et al., PRX Quantum 3, 010350 (2022).
We present recent development and experimental result of readout electronics using tunnel-diode cryogenic circuit. The operating temperature range between 4 K to 30 mK. The oscillating frequency reaches >100 MHz. The phase noise was measured to be -20 dBc/Hz at offset frequency 10 Hz and -80 dBc/Hz at offset frequency 1 MHz.
[1] J. P. G. Van Dijk, et al., IEEE J. Solid-State Circuits 55, 2930 (2020).
[2] J. C. Bardin, et al., IEEE J. Solid-State Circuits 54, 3043 (2019).
[3] S. Pauka, et al., Nat. Electron, 4, 64 (2021).
[4] K. L. Howe, et al., PRX Quantum 3, 010350 (2022).