@article{23156,
  abstract     = {Extracting the current-phase relationship (CPR) of a single superconducting junction is challenging in practice and traditionally involves embedding the junction in a larger superconducting circuit containing SQUIDs and/or resonators. Applying ac driving to the junction has proven to be a viable and less invasive way to extract information about the few lowest harmonics of the CPR, by locating the integer and fractional Shapiro steps in the 𝐼⁢𝑉-curve of the driven junction. Here, we present an alternative driving-based method that allows to extract the full harmonic content of a CPR in a relatively noninvasive way, by fitting the measured critical currents of the driven junction as a function of driving power. We test our method, both using numerical simulations and in experiments, and we show that it works accurately.},
  author       = {Tjøtta, Maxim and Shah, Devashish C and Modi, Kanishk and Valentini, Marco and Seoane Souto, Rubén and Katsaros, Georgios and Danon, Jeroen},
  issn         = {2331-7019},
  journal      = {Physical Review Applied},
  number       = {4},
  publisher    = {American Physical Society},
  title        = {{Fast-driving spectroscopy of current-phase relationships of individual Josephson elements}},
  doi          = {10.1103/d3gl-qntm},
  volume       = {26},
  year         = {2026},
}