Vissers, M. R., Wheeler, J. D., Szypryt, P., Giachero, A., Austermann, J. E., Hubmayr, J., O'Neil, G. C., Ullom, J. N., Gao, J. (2026). In situ frequency tuning of superconducting resonators via nonlinear kinetic inductance. Applied Physics Letters. https://doi.org/10.1063/5.0316371