Engineering high-coherence superconducting qubits

I Siddiqi - Nature Reviews Materials, 2021 - nature.com
Advances in materials science and engineering have played a central role in the
development of classical computers and will undoubtedly be critical in propelling the …

Scaling silicon-based quantum computing using CMOS technology

MF Gonzalez-Zalba, S De Franceschi, E Charbon… - Nature …, 2021 - nature.com
As quantum processors grow in complexity, attention is moving to the scaling prospects of
the entire quantum computing system, including the classical support hardware. Recent …

Quantum breakdown of superconductivity in low-dimensional materials

B Sacépé, M Feigel'man, TM Klapwijk - Nature Physics, 2020 - nature.com
In order to understand the emergence of superconductivity it is useful to study the reverse
process and identify the various pathways that lead to its destruction. One way is to increase …

Superconducting circuit companion—an introduction with worked examples

SE Rasmussen, KS Christensen, SP Pedersen… - PRX Quantum, 2021 - APS
This tutorial aims at giving an introductory treatment of the circuit analysis of
superconducting qubits, ie, two-level systems in superconducting circuits. It also touches …

High-coherence fluxonium qubit

LB Nguyen, YH Lin, A Somoroff, R Mencia, N Grabon… - Physical Review X, 2019 - APS
We report superconducting fluxonium qubits with coherence times largely limited by energy
relaxation and reproducibly satisfying T 2> 100 μ s (T 2> 400 μ s in one device). Moreover …

Towards scalable bosonic quantum error correction

BM Terhal, J Conrad, C Vuillot - Quantum Science and …, 2020 - iopscience.iop.org
We review some of the recent efforts in devising and engineering bosonic qubits for
superconducting devices, with emphasis on the Gottesman–Kitaev–Preskill (GKP) qubit. We …

Reducing the impact of radioactivity on quantum circuits in a deep-underground facility

L Cardani, F Valenti, N Casali, G Catelani… - Nature …, 2021 - nature.com
As quantum coherence times of superconducting circuits have increased from nanoseconds
to hundreds of microseconds, they are currently one of the leading platforms for quantum …

Inductively shunted transmons exhibit noise insensitive plasmon states and a fluxon decay exceeding 3 hours

F Hassani, M Peruzzo, LN Kapoor, A Trioni… - Nature …, 2023 - nature.com
Currently available quantum processors are dominated by noise, which severely limits their
applicability and motivates the search for new physical qubit encodings. In this work, we …

Gate-based superconducting quantum computing

S Kwon, A Tomonaga, G Lakshmi Bhai… - Journal of Applied …, 2021 - pubs.aip.org
Quantum computing is considered as a next-generation information processing technology.
The basic element of a quantum computing system is a quantum bit, often called a qubit …

Blueprint for a high-performance fluxonium quantum processor

LB Nguyen, G Koolstra, Y Kim, A Morvan, T Chistolini… - PRX Quantum, 2022 - APS
Transforming stand-alone qubits into a functional, general-purpose quantum processing unit
requires an architecture where many-body quantum entanglement can be generated and …