[HTML][HTML] Probing quantum devices with radio-frequency reflectometry

F Vigneau, F Fedele, A Chatterjee, D Reilly… - Applied Physics …, 2023‏ - pubs.aip.org
Many important phenomena in quantum devices are dynamic, meaning that they cannot be
studied using time-averaged measurements alone. Experiments that measure such transient …

A cryo-CMOS chip that integrates silicon quantum dots and multiplexed dispersive readout electronics

A Ruffino, TY Yang, J Michniewicz, Y Peng… - Nature …, 2022‏ - nature.com
As quantum computers grow in complexity, the technology will have to evolve from large
distributed systems to compact integrated solutions. Spin qubits in silicon quantum dots are …

Silicon spin qubits from laboratory to industry

M De Michielis, E Ferraro, E Prati, L Hutin… - Journal of Physics D …, 2023‏ - iopscience.iop.org
Quantum computation (QC) is one of the most challenging quantum technologies that
promise to revolutionize data computation in the long-term by outperforming the classical …

High-sensitivity AC-charge detection with a MHz-frequency fluxonium qubit

BL Najera-Santos, R Rousseau, K Gerashchenko… - Physical Review X, 2024‏ - APS
Owing to their strong dipole moment and long coherence times, superconducting qubits
have demonstrated remarkable success in hybrid quantum circuits. However, most qubit …

A cryogenic broadband sub-1-dB NF CMOS low noise amplifier for quantum applications

Y Peng, A Ruffino, E Charbon - IEEE Journal of Solid-State …, 2021‏ - ieeexplore.ieee.org
A cryogenic broadband low noise amplifier (LNA) for quantum applications based on a
standard 40-nm CMOS technology is reported. The LNA specifications are derived from the …

A fully integrated cryo-CMOS SoC for state manipulation, readout, and high-speed gate pulsing of spin qubits

J Park, S Subramanian, L Lampert… - IEEE Journal of Solid …, 2021‏ - ieeexplore.ieee.org
This article presents a fully integrated Cryo-CMOS system on chip (SoC) for quantum
computing. The proposed SoC integrates a radio frequency (RF) pulse modulator for qubit …

Radio-frequency capacitive gate-based sensing

I Ahmed, JA Haigh, S Schaal, S Barraud, Y Zhu… - Physical Review …, 2018‏ - APS
Develo** fast, accurate, and scalable techniques for quantum-state readout is an active
area in semiconductor-based quantum computing. Here, we present results on dispersive …

Rapid High-Fidelity Spin-State Readout in /- Quantum Dots via rf Reflectometry

EJ Connors, JJ Nelson, JM Nichol - Physical Review Applied, 2020‏ - APS
Silicon spin qubits show great promise as a scalable qubit platform for fault-tolerant quantum
computing. However, fast high-fidelity readout of charge and spin states, which is required …

Cavity photons as a probe for charge relaxation resistance and photon emission in a quantum dot coupled to normal and superconducting continua

LE Bruhat, JJ Viennot, MC Dartiailh, MM Desjardins… - Physical Review X, 2016‏ - APS
Microwave cavities have been widely used to investigate the behavior of closed few-level
systems. Here, we show that they also represent a powerful probe for the dynamics of …

Single-shot readout of hole spins in Ge

L Vukušić, J Kukucka, H Watzinger, JM Milem… - Nano …, 2018‏ - ACS Publications
The strong atomistic spin–orbit coupling of holes makes single-shot spin readout
measurements difficult because it reduces the spin lifetimes. By integrating the charge …