Detailed modelling of the susceptibility of a thermally populated, strongly driven circuit-QED system
Anton Frisk Kockum, Martin O. Sandberg, G¿ran Johansson, David P. Pappas
We present measurements and modelling of the susceptibility of a 2D microstrip cavity coupled to a driven transmon qubit. We are able to fit the response of the cavity to a weak probe signal with high accuracy in the strong coupling, low detuning, i.e., non-dispersive, limit over a wide bandwidth. The observed spectrum is rich in multi-photon processes for the doubly dressed transmon. These features are well explained by including the higher transmon levels in the driven Jaynes-Cummings model and solving the full master equation to calculate the susceptibility of the cavity.
Journal of Physics B-Atomic Molecular and Optical Physics
Frisk Kockum, A.
, Sandberg, M.
, Johansson, G.
and Pappas, D.
Detailed modelling of the susceptibility of a thermally populated, strongly driven circuit-QED system, Journal of Physics B-Atomic Molecular and Optical Physics, [online], https://doi.org/10.1088/0953-4075/46/22/224014, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=913814
(Accessed December 3, 2023)