Three-Dimensional Superconducting Resonators at mK with Photon Lifetimes up to s

A Romanenko, R Pilipenko, S Zorzetti, D Frolov… - Physical Review …, 2020 - APS
Very-high-quality-factor superconducting radio-frequency cavities developed for
accelerators can enable fundamental physics searches with orders of magnitude higher …

Observation of Josephson harmonics in tunnel junctions

D Willsch, D Rieger, P Winkel, M Willsch, C Dickel… - Nature Physics, 2024 - nature.com
Approaches to developing large-scale superconducting quantum processors must cope with
the numerous microscopic degrees of freedom that are ubiquitous in solid-state devices …

Beyond the standard quantum limit for parametric amplification of broadband signals

M Renger, S Pogorzalek, Q Chen, Y Nojiri… - npj Quantum …, 2021 - nature.com
The low-noise amplification of weak microwave signals is crucial for countless protocols in
quantum information processing. Quantum mechanics sets an ultimate lower limit of half a …

Experimental quantum teleportation of propagating microwaves

KG Fedorov, M Renger, S Pogorzalek, R Di Candia… - Science …, 2021 - science.org
The field of quantum communication promises to provide efficient and unconditionally
secure ways to exchange information, particularly, in the form of quantum states. Meanwhile …

Scattering coefficients of superconducting microwave resonators. I. Transfer matrix approach

QM Chen, M Pfeiffer, M Partanen, F Fesquet… - Physical Review B, 2022 - APS
We describe a unified classical approach for analyzing the scattering coefficients of
superconducting microwave resonators with a variety of geometries. To fill the gap between …

Impacts of noise and structure on quantum information encoded in a quantum memory

M Otten, K Kapoor, AB Özgüler, ET Holland… - Physical Review A, 2021 - APS
As larger, higher-quality quantum devices are built and demonstrated in quantum
information applications, such as quantum computation and quantum communication, the …

Comparison of Quantum PUF models

V Galetsky, S Ghosh, C Deppe… - 2022 IEEE Globecom …, 2022 - ieeexplore.ieee.org
Physical unclonable functions (PUFs) are hardware structures in a physical system (eg
semiconductor, crystals etc.) that are used to enable unique identification of the …

Entanglement-assisted data transmission as an enabling technology: A link-layer perspective

J Nötzel, S DiAdamo - 2020 IEEE International Symposium on …, 2020 - ieeexplore.ieee.org
Quantum entanglement as a resource has repeatedly proven to add performance
improvements for various tasks in communication and computing, yet no current application …

In situ tunable nonlinearity and competing signal paths in coupled superconducting resonators

M Fischer, QM Chen, C Besson, P Eder, J Goetz… - Physical Review B, 2021 - APS
We have fabricated and studied a system of two tunable and coupled nonlinear
superconducting resonators. The nonlinearity is introduced by galvanically coupled dc …

Superefficient cascade multiresonator quantum memory

NS Perminov, DY Tarankova… - Laser Physics Letters, 2018 - iopscience.iop.org
We propose a cascade scheme of a superefficient broadband quantum memory consisting
of four high-Q ring resonators forming a controllable frequency comb, interacting with long …