Materials challenges and opportunities for quantum computing hardware

NP De Leon, KM Itoh, D Kim, KK Mehta, TE Northup… - Science, 2021 - science.org
BACKGROUND The past two decades have seen intense efforts aimed at building quantum
computing hardware with the potential to solve problems that are intractable on classical …

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 …

[HTML][HTML] A quantum engineer's guide to superconducting qubits

P Krantz, M Kjaergaard, F Yan, TP Orlando… - Applied physics …, 2019 - pubs.aip.org
The aim of this review is to provide quantum engineers with an introductory guide to the
central concepts and challenges in the rapidly accelerating field of superconducting …

New material platform for superconducting transmon qubits with coherence times exceeding 0.3 milliseconds

APM Place, LVH Rodgers, P Mundada… - Nature …, 2021 - nature.com
The superconducting transmon qubit is a leading platform for quantum computing and
quantum science. Building large, useful quantum systems based on transmon qubits will …

Correlated charge noise and relaxation errors in superconducting qubits

CD Wilen, S Abdullah, NA Kurinsky, C Stanford… - Nature, 2021 - nature.com
The central challenge in building a quantum computer is error correction. Unlike classical
bits, which are susceptible to only one type of error, quantum bits (qubits) are susceptible to …

Resolving catastrophic error bursts from cosmic rays in large arrays of superconducting qubits

M McEwen, L Faoro, K Arya, A Dunsworth, T Huang… - Nature Physics, 2022 - nature.com
Scalable quantum computing can become a reality with error correction, provided that
coherent qubits can be constructed in large arrays,. The key premise is that physical errors …

Experimental Realization of a Protected Superconducting Circuit Derived from the Qubit

A Gyenis, PS Mundada, A Di Paolo, TM Hazard, X You… - PRX Quantum, 2021 - APS
Encoding a qubit in logical quantum states with wave functions characterized by disjoint
support and robust energies can offer simultaneous protection against relaxation and pure …

Impact of ionizing radiation on superconducting qubit coherence

AP Vepsäläinen, AH Karamlou, JL Orrell, AS Dogra… - Nature, 2020 - nature.com
Technologies that rely on quantum bits (qubits) require long coherence times and high-
fidelity operations. Superconducting qubits are one of the leading platforms for achieving …

Surpassing millisecond coherence in on chip superconducting quantum memories by optimizing materials and circuit design

S Ganjam, Y Wang, Y Lu, A Banerjee, CU Lei… - Nature …, 2024 - nature.com
The performance of superconducting quantum circuits for quantum computing has advanced
tremendously in recent decades; however, a comprehensive understanding of relaxation …

Microwave quantum link between superconducting circuits housed in spatially separated cryogenic systems

P Magnard, S Storz, P Kurpiers, J Schär, F Marxer… - Physical Review Letters, 2020 - APS
Superconducting circuits are a strong contender for realizing quantum computing systems
and are also successfully used to study quantum optics and hybrid quantum systems …