The flux qubit revisited to enhance coherence and reproducibility

F Yan, S Gustavsson, A Kamal, J Birenbaum… - Nature …, 2016 - nature.com
… Over the past 15 years, superconducting qubits have achieved a remarkable five-order-of-magnitude
increase in their fundamental coherence metrics, including the energy-decay time …

Impact of ionizing radiation on superconducting qubit coherence

AP Vepsäläinen, AH Karamlou, JL Orrell, AS Dogra… - Nature, 2020 - nature.com
… limit the coherence times of superconducting qubits of the type … qubits, reducing or mitigating
the impact of ionizing radiation will be critical for realizing fault-tolerant superconducting

Microcavity controlled coupling of excitonic qubits

F Albert, K Sivalertporn, J Kasprzak, M Strauss… - Nature …, 2013 - nature.com
… of coherent coupling of distant quantum bits—like trapped ions, superconducting qubits or
… Here we demonstrate the controlled coherent coupling of spatially separated quantum dots …

Observation of High Coherence in Josephson Junction Qubits Measured<? format?> in a Three-Dimensional Circuit QED Architecture

H Paik, DI Schuster, LS Bishop, G Kirchmair… - Physical review …, 2011 - APS
… therefore requires engineering a Hamiltonian where the undesirable couplings that lead to
… of coherence? Here we present results on a new implementation of a superconducting qubit

[HTML][HTML] Overlap junctions for high coherence superconducting qubits

X Wu, JL Long, HS Ku, RE Lake, M Bal… - Applied Physics …, 2017 - pubs.aip.org
… as the physical qubit. Coherence times of superconducting qubits have been increased …
These relatively long coherence times, combined with fast, high-fidelity gate schemes, have …

Controlling the spontaneous emission of a superconducting transmon qubit

AA Houck, JA Schreier, BR Johnson, JM Chow, J Koch… - Physical review …, 2008 - APS
… a detailed characterization of coherence in seven transmon qubits in a circuit … qubit coherence.
Although T2 turned out to be small compared to T1 in the earliest superconducting qubits […

Flux qubits with long coherence times for hybrid quantum circuits

M Stern, G Catelani, Y Kubo, C Grezes, A Bienfait… - Physical review …, 2014 - APS
… A better control of the environment was recently demonstrated in the case of another
superconducting qubit, the transmon, by using a three dimensional (3D) cavity that allows reading …

Superconducting qubits

MH Devoret, JM Martinis - Les Houches, 2004 - Elsevier
… Although it cannot lead to a useful qubit, this circuit allows the presentation of the circuit …
three basic types of superconducting qubits. After showing how their coherence is affected by the …

High-fidelity, high-scalability two-qubit gate scheme for superconducting qubits

Y Xu, J Chu, J Yuan, J Qiu, Y Zhou, L Zhang, X Tan… - Physical review …, 2020 - APS
… In particular, the higher-frequency Q1 dephases drastically faster (Teff ϕ;Q1 ≈ 0.5 μs), a
consequence of the stronger interaction between the qubit and the less coherent coupler during …

Parametric multi-element coupling architecture for coherent and dissipative control of superconducting qubits

GBP Huber, FA Roy, L Koch, I Tsitsilin, J Schirk… - arXiv preprint arXiv …, 2024 - arxiv.org
… Efficient schemes to simultaneously mediate coherent interactions between multiple …
superconducting qubit architecture based on tunable parametric interactions to perform two-qubit