Magnetization Noise Induced Collapse and Revival of Rabi Oscillations in circuit QED

摘要: We use a quasi Hamiltonian formalism to describe the dissipative dynamics of circuit QED qubit that is affected by several fluctuating two level systems with 1/f noise power spectrum. The qubit-resonator interactions are described Jaynes Cummings model. argue presence pure dephasing in such system will also induce an energy relaxation mechanism via dipole coupling term. This random modulation seen lead rich physical behavior. For non-Markovian noise, can either worsen or alleviate decoherence depending on initial conditions. magnetization leads behavior resembling collapse and revival Rabi oscillations. broad distribution couplings, frequency these oscillations depends mean strength. this semi-analytically find it be independent number fluctuators. phenomenon could used as situ probe characteristics.