2024/03/11 by Pierre Vallet, Vallet, Pierre, J. Cayssol +1 · 2 citations
Engineering · Physics and Astronomy · #Advanced Electrical Measurement Techniques #Atomic and Subatomic Physics Research #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Physics of Superconductivity and Magnetism
paper · pdf · doi:10.48550/arxiv.2403.06878
openalex publication_date 2024/03/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The Anderson-Higgs mode in a superconductor corresponds to a collective and coherent oscillation of the order parameter amplitude. We propose to detect this mode in a tunnel Josephson junction between two singlet s-wave diffusive superconductors. We find a strong enhancement of the tunneling current when the junction is pumped at the equilibrium gap frequency, corresponding to the activation of the Anderson-Higgs mode. By solving the Keldysh-Usadel equations, we obtain current peaks at specific bias voltages that can serve as signatures of the Anderson-Higgs mode.