Dissipative generation for steady-state entanglement of two transmons in circuit QED
He Shuang, Liu Dan, Li Ming-Hao
       

Experimental schematic illustration for dissipative preparation of entangled steady state between two transmission line microwave resonators coupled through hopping of microwave photons with a hopping rate J in circuit QED. κ, γ, and γ ϕ are single-photon decay rate, superconducting qutrit spontaneous emission rate, and superconducting qutrit dephasing rate. Each resonator contains a single Λ-type superconducting qutrit which possesses two ground states | g and | f and one excited state | e . The qutrit transition | f | e is resonantly coupled to the resonator with the coupling constant g, and the transitions | g | e and | g | f are driven by two microwave fields with Rabi frequencies Ω 1 and Ω 2 , respectively.