Virtual-photon-induced quantum phase gates for two distant atoms trapped in separate cavities

Details Virtual-photon-induced quantum phase gates for two distant atoms trapped in separate cavities Virtual-photon-induced quantum phase gates for two distant atoms trapped in separate cavities

2012-03-02

arxiv.org/abs/1203.0355v1

Appl. Phys. Lett. 94, 154101 (2009)

Physics

Quantum Physics

Scientific paper

10.1063/1.3117235

We propose a scheme for implementing quantum gates for two atoms trapped in distant cavities connected by an optical fiber. The effective long-distance coupling between the two distributed qubits is achieved without excitation and transportation of photons through the optical fiber. Since the cavity modes and fiber mode are never populated and the atoms undergo no transitions, the gate operation is insensitive to the decoherence effect when the thermal photons in the environment are negligible. The scheme opens promising perspectives for networking quantum information processors and implementing distributed and scalable quantum computation.

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