TY - JOUR T1 - Quantum interface between an electrical circuit and a single atom JF - Physical Review Letters Y1 - 2012 A1 - D. Kielpinski A1 - D. Kafri A1 - M. J. Woolley A1 - G. J. Milburn A1 - J. M. Taylor AB - 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. VL - 108 UR - http://arxiv.org/abs/1111.5999v1 CP - 13 J1 - Phys. Rev. Lett. U5 - 10.1103/PhysRevLett.108.130504 ER -