Kerr-Shifted Resonant Quantum Entangling Operation on Qubits in Circuit QED

We present a high-fidelity quantum entangling operation on superconducting qubits assisted by a resonator in the quasi-dispersive regime with a new effect — a selective resonance coming from amplified Kerr-shifted resonator transition frequency. This operation does not require any kind of drive fields, the interaction between qubits, and the non-computational higher-level excitation state, which provides an efficient way to realize quantum computation with superconducting qubits. A universal quantum computation scheme is presented with this operation in a simple way.