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Quantum Interface between an Electrical Circuit and a Single Atom

D. Kielpinski, D. Kafri, M. J. Woolley, G. J. Milburn, and J. M. Taylor
Phys. Rev. Lett. 108, 130504 – Published 30 March 2012
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Abstract

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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  • Received 25 November 2011

DOI:https://doi.org/10.1103/PhysRevLett.108.130504

© 2012 American Physical Society

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Quantum Information Not Lost in Translation

Published 30 March 2012

Researchers propose a way to transfer quantum information between ions and electronic circuits, opening up new options for quantum computation.

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Authors & Affiliations

D. Kielpinski1, D. Kafri2, M. J. Woolley3, G. J. Milburn3, and J. M. Taylor2

  • 1Centre for Quantum Dynamics, Griffith University, Nathan, Queensland 4111, Australia
  • 2Joint Quantum Institute/NIST, College Park, Maryland, USA
  • 3Centre for Engineered Quantum Systems, School of Mathematics and Physics, The University of Queensland, Saint Lucia, Queensland 4072, Australia

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Issue

Vol. 108, Iss. 13 — 30 March 2012

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