Quantum interface between an electrical circuit and a single atom

Details Quantum interface between an electrical circuit and a single atom Quantum interface between an electrical circuit and a single atom

2011-11-25

arxiv.org/abs/1111.5999v1

Physics

Quantum Physics

Supplemental material available on request

Scientific paper

We show how to bridge the divide between atomic systems and electronic devices by engineering a coupling between the motion of a single ion and the quantized electric field of a resonant circuit. Our method can be used to couple the internal state of an ion to the quantized circuit with the same speed as the internal-state coupling between two ions. All the well-known quantum information protocols linking ion internal and motional states can be converted to protocols between circuit photons and ion internal states. Our results enable quantum interfaces between solid state qubits, atomic qubits, and light, and lay the groundwork for a direct quantum connection between electrical and atomic metrology standards.

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