Superluminal propagation of composite collective modes in superconductor-ferromagnet heterostructures

P Derendorf, AF Volkov, IM Eremin - Physical Review B, 2024 - APS
Superconductor/ferromagnet/superconductor Josephson junctions are paradigmatic
systems for studying the delicate interplay of superconductivity and magnetism via proximity …

Towards novel tunability schemes for hybrid ferromagnetic transmon qubits

HG Ahmad, R Ferraiuolo, G Serpico… - IEEE Transactions …, 2025 - ieeexplore.ieee.org
Flux tuning of qubit frequencies in superconducting quantum processors is fundamental for
implementing single and multi-qubit gates in quantum algorithms. Typical architectures …

[HTML][HTML] Josephson coupling in lanthanum-based cuprate superlattices

HG Ahmad, D Massarottti, F Tafuri, G Logvenov… - APL Quantum, 2025 - pubs.aip.org
In most anisotropic compounds such as bismuth-based layered cuprate perovskites, the
supercurrent across the blocking layer is of Josephson type, and a single crystal forms a …