Superconductor–semiconductor hybrid-circuit quantum electrodynamics

G Burkard, MJ Gullans, X Mi, JR Petta - Nature Reviews Physics, 2020 - nature.com
Light–matter interactions at the single-particle level have generally been explored in the
context of atomic, molecular and optical physics. Recent advances motivated by quantum …

Milestones toward Majorana-based quantum computing

D Aasen, M Hell, RV Mishmash, A Higginbotham… - Physical Review X, 2016 - APS
We introduce a scheme for preparation, manipulation, and read out of Majorana zero modes
in semiconducting wires with mesoscopic superconducting islands. Our approach …

[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 …

Charge detection in an array of CMOS quantum dots

E Chanrion, DJ Niegemann, B Bertrand, C Spence… - Physical Review …, 2020 - APS
The recent development of arrays of quantum dots in semiconductor nanostructures
highlights the progress of quantum devices toward a large scale. However, how to realize …

Fast charge sensing of a cavity-coupled double quantum dot using a Josephson parametric amplifier

J Stehlik, YY Liu, CM Quintana, C Eichler, TR Hartke… - Physical Review …, 2015 - APS
We demonstrate fast readout of a double quantum dot (DQD) that is coupled to a
superconducting resonator. Utilizing a parametric amplifier beyond its range of linear …

Hole spin coherence in a Ge/Si heterostructure nanowire

AP Higginbotham, TW Larsen, J Yao, H Yan… - Nano …, 2014 - ACS Publications
Relaxation and dephasing of hole spins are measured in a gate-defined Ge/Si nanowire
double quantum dot using a fast pulsed-gate method and dispersive readout. An …

Ultra-low-power cryogenic SiGe low-noise amplifiers: Theory and demonstration

S Montazeri, WT Wong, AH Coskun… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
Low-power cryogenic low-noise amplifiers (LNAs) are desired to ease the cooling
requirements of ultra-sensitive cryogenically cooled instrumentation. In this paper, the …

Quantum paraelectric varactors for radiofrequency measurements at millikelvin temperatures

P Apostolidis, BJ Villis, JF Chittock-Wood… - Nature …, 2024 - nature.com
Radiofrequency reflectometry can provide fast and sensitive electrical read-out of charge
and spin qubits in quantum dot devices coupled to resonant circuits. In situ frequency tuning …

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 …

Radio frequency measurements of tunnel couplings and singlet–triplet spin states in Si: P quantum dots

MG House, T Kobayashi, B Weber, SJ Hile… - Nature …, 2015 - nature.com
Spin states of the electrons and nuclei of phosphorus donors in silicon are strong candidates
for quantum information processing applications given their excellent coherence times …