Qubit-photon interactions in a cavity: Measurement-induced dephasing and number splitting
Qubit-photon interactions in a cavity: Measurement-induced dephasing and number splitting
We theoretically study measurement induced-dephasing of a superconducting qubit in the circuit QED architecture and compare the results to those obtained experimentally by Schuster {\it et al.}, [Phys. Rev. Lett. 94, 123602 (2005)]. Strong coupling of the qubit to the resonator leads to a significant ac-Stark shift of the qubit …