Fig. 3

Fig. 3 SQUID response (a) without (qubit in the ground state) and (b) with resonant microwave. The ordinate is the change in the maximum supercurrent that we can transmit through the SQUID (1 nA scale). Resonant peaks and dips of up to three photon transitions are clearly observed.


Copyright (c) 2004 Nippon telegraph and telephone corporation