%0 Electronic Article
%A Duipmans, Lammert
%A Waasen, Stefan Van
%A Geck, Lotte
%T Pulse Generation for Spin-Qubit Control Using Adiabatic Charging
%M FZJ-2025-04994
%D 2025
%X This brief presents a power-efficient approach for generating control pulses for semiconductor spin qubits that combines the flexibility of room-temperature electronics with the scalability of cryogenic electronics. By demultiplexing ramp pulses generated at room temperature, capacitive loads are charged adiabatically, greatly reducing power dissipation. The method is demonstrated using a cryogenic circuit in a 22 nm CMOS technology, designed to generate control pulses for shuttling semiconductor electron spins. Post-layout simulations show that the circuit achieves analog power dissipation more than two orders of magnitude lower than the state of the art at frequencies up to 1 MHz, more than one order of magnitude lower at 10 MHz, and maintains superior efficiency up to several hundred MHz. Furthermore, only two external AC inputs are required to generate a wide range of pulse patterns with tunable amplitudes across multiple outputs. These results demonstrate the potential of the approach for large-scale quantum processor architectures.
%F PUB:(DE-HGF)25
%9 Preprint
%R 10.36227/techrxiv.176231736.66174866/v1
%U https://juser.fz-juelich.de/record/1048893