Cryo-CMOS Multi-Frequency Modulator for 2-Qubit Controller

This paper addresses the design of a CMOS modulator to control two quantum bits. The proposed architecture offers several advantages that are addressed and discussed in this paper. The proposed architecture is investigated through both mathematical modeling and Verilog simulations. Moreover, the circuit was designed using the cryogenic Design Kit of the 130 nm SiGe BiCMOS technology of the IHP foundry. The observed agreement between the modeling, Verilog, and transistor-level simulations proves the physical feasibility of the proposed architecture.