19.3 A 200dB FoM 4-to-5GHz Cryogenic Oscillator with an Automatic Common-Mode Resonance Calibration for Quantum Computing Applications
Jiang Gong, Yue Chen, Fabio Sebastiano, Edoardo Charbon, Masoud Babaie
Abstract
Low-power, low phase noise (PN) cryogenic frequency generation is required for the control electronics of quantum computers. To avoid limiting the performance of quantum bits, the frequency noise of a PLL should be <; 1.9 kHz rms [1]. However, it is challenging for RF oscillators, as the heart of frequency synthesizers to satisfy such a requirement at cryogenic temperatures (CT), since 1) white noise in nanoscale CMOS devices is limited by temperature-independent shot noise; 2) the transistor 1/f noise is much higher, resulting in the oscillator PN being dominated by the 30dB/dec region [1].
Topics & Concepts
Phase noisePhysicsNoise (video)Electrical engineeringCMOSPhase-locked loopQuantum noiseOptoelectronicsShot noiseTransistorElectronic engineeringQuantumComputer scienceEngineeringQuantum mechanicsVoltageDetectorImage (mathematics)Artificial intelligenceRadio Frequency Integrated Circuit DesignAdvancements in PLL and VCO TechnologiesSemiconductor materials and devices