Shadow-wall lithography of ballistic superconductor–semiconductor quantum devices
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-25100-w
Abstract: The realization of hybrid superconductor–semiconductor quantum devices, in particular a topological qubit, calls for advanced techniques to readily and reproducibly engineer induced superconductivity in semiconductor nanowires. Here, we introduce an on-chip fabrication paradigm based on… read more here.
Keywords: semiconductor quantum; quantum devices; superconductor; superconductor semiconductor ... See more keywords
Entanglement detection with quantum support vector machine (QSVM) on near-term quantum devices
Sign Up to like & getrecommendations! Published in 2025 at "Scientific Reports"
DOI: 10.1038/s41598-025-95897-9
Abstract: Detecting and quantifying quantum entanglement remain significant challenges in the noisy intermediate-scale quantum (NISQ) era. This study presents the implementation of quantum support vector machines (QSVMs) on IBM quantum devices to identify and classify entangled… read more here.
Keywords: quantum devices; entanglement detection; support vector; quantum support ... See more keywords
Probing quantum devices with radio-frequency reflectometry
Sign Up to like & getrecommendations! Published in 2022 at "Applied Physics Reviews"
DOI: 10.1063/5.0088229
Abstract: Many important phenomena in quantum devices are dynamic, meaning that they cannot be studied using time-averaged measurements alone. Experiments that measure such transient effects are collectively known as fast readout. One of the most useful… read more here.
Keywords: quantum devices; frequency; radio frequency; frequency reflectometry ... See more keywords
Abatement of ionizing radiation for superconducting quantum devices
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Instrumentation"
DOI: 10.1088/1748-0221/19/09/p09001
Abstract: Ionizing radiation has been shown to reduce the performance of superconducting quantum circuits. In this report, we evaluate the expected contributions of different sources of ambient radioactivity for typical superconducting qubit experiment platforms. Our assessment… read more here.
Keywords: abatement ionizing; quantum devices; ionizing radiation; radiation ... See more keywords
Testing incompatibility of quantum devices with few states
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.032228
Abstract: When observations must come from incompatible devices and cannot be produced by compatible devices? This question motivates two integer valued quantifications of incompatibility, called incompatibility dimension and compatibility dimension. The first one quantifies how many… read more here.
Keywords: incompatibility; quantum devices; incompatibility quantum; testing incompatibility ... See more keywords
Spin superfluid Josephson quantum devices
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.144402
Abstract: A macroscopic spintronic qubit based on spin superfluidity and spin Hall phenomena is proposed. This magnetic quantum information processing device realizes the spin-supercurrent analog of the superconducting phase qubit and allows for full electrical control… read more here.
Keywords: quantum; spin superfluid; josephson quantum; superfluid josephson ... See more keywords
Entanglement of Signal Paths via Noisy Superconducting Quantum Devices
Sign Up to like & getrecommendations! Published in 2023 at "Entropy"
DOI: 10.3390/e25010153
Abstract: Quantum routers will provide for important functionality in emerging quantum networks, and the deployment of quantum routing in real networks will initially be realized on low-complexity (few-qubit) noisy quantum devices. A true working quantum router… read more here.
Keywords: quantum; noisy superconducting; quantum devices; quantum routing ... See more keywords
RFSoC-based radio-frequency reflectometry in gate-defined bilayer graphene quantum devices
Sign Up to like & getrecommendations! Published in 2025 at "Applied Physics Express"
DOI: 10.35848/1882-0786/ade6c2
Abstract: Quantum computers require scalability and high performance. While semiconductor quantum dots are promising candidates for qubits, the complexity of measurement setups poses a challenge for scaling up. Here, radio-frequency system-on-chip (RFSoC) technology is expected to… read more here.
Keywords: quantum devices; radio frequency; defined bilayer; gate defined ... See more keywords