Hybrid atom-photon quantum gate in a superconducting microwave resonator
J. D. Pritchard, J. A. Isaacs, M. A. Beck, R. McDermott, M. Saffman
DOI 10.1103/PhysRevA.89.010301 · Physical Review A
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Abstract
We propose a hybrid quantum gate between an atom and a microwave photon in a superconducting coplanar waveguide cavity by exploiting the strong resonant microwave coupling between adjacent Rydberg states. Using experimentally achievable parameters gate fidelities >0.99 are possible on submicrosecond time scales for waveguide temperatures below 40 mK. This provides a mechanism for generating entanglement between two disparate quantum systems and represents an important step in the creation of a hybrid quantum interface applicable for both quantum simulation and quantum information processing.
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