ESSERC 2024

Compact frequency multiplexed readout of silicon quantum dots in monolithic FDSOI 28nm technology

Abstract

This paper demonstrates the first on-chip frequency multiplexed readout of two co-integrated single-electron transistors without the need for bulky resonators. We characterize single electron dynamics in both single electron transistors at 4.2K before validating their simultaneous readout within 2.2μs, achieving a 99.9% fidelity with a 1MHz frequency spacing. This experimental demonstration paves the way towards resonator-free large-scale quantum-classical architectures that would be required for future universal and reprogrammable quantum computers.

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Author(s)

Tristan Meunier

CTO & co-founder

All authors

Quentin Schmidt, Baptiste Jadot, Brian Martinez, Thomas Houriez, Adrien Morel, Tristan Meunier, Gaël Pillonnet, Gérard Billiot, Aloysius Jansen, Xavier Jehl, Yvain Thonnart, Franck Badets