Detailed modelling of the susceptibility of a thermally populated, strongly driven circuit-QED system
Artikel i vetenskaplig tidskrift, 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

Författare

Anton Frisk Kockum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

M. Sandberg

National Institute of Standards and Technology

M. R. Vissers

National Institute of Standards and Technology

J. S. Gao

National Institute of Standards and Technology

Göran Johansson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

D. P. Pappas

National Institute of Standards and Technology

Journal of Physics B: Atomic, Molecular and Optical Physics

0953-4075 (ISSN)

Vol. 46

Ämneskategorier

Atom- och molekylfysik och optik

DOI

10.1088/0953-4075/46/22/224014