Circuit quantum electrodynamics in the ultrastrong-coupling regime

T Niemczyk, F Deppe, H Huebl, E P Menzel, F Hocke, M J Schwarz, J JGarcia-Ripoll, D Zueco, T Hümmer, E Solano, A Marx and R Gross.. Circuit quantum electrodynamics in the ultrastrong-coupling regime. Nature Physics. 2010, Vol. 6, p. 772-2010.