Detailed modelling of the susceptibility of a thermally populated, strongly driven circuit-QED system
Journal article, 2013
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.
qubit
quantum electrodynamics
Author
Anton Frisk Kockum
Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics
M. Sandberg
National Institute of Standards and Technology (NIST)
M. R. Vissers
National Institute of Standards and Technology (NIST)
J. S. Gao
National Institute of Standards and Technology (NIST)
Göran Johansson
Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics
D. P. Pappas
National Institute of Standards and Technology (NIST)
Journal of Physics B: Atomic, Molecular and Optical Physics
0953-4075 (ISSN) 13616455 (eISSN)
Vol. 46 22 224014Subject Categories
Atom and Molecular Physics and Optics
DOI
10.1088/0953-4075/46/22/224014