Optomechanical transducers for quantum-information processing

K. Stannigel, P. Rabl, A. S. Sørensen, M. D. Lukin, and P. Zoller
Phys. Rev. A 84, 042341 – Published 31 October 2011

Abstract

We discuss the implementation of optical quantum networks where the interface between stationary and photonic qubits is realized by optomechanical transducers [K. Stannigel et al., Phys. Rev. Lett. 105, 220501 (2010)]. This approach does not rely on the optical properties of the qubit and thereby enables optical quantum communication applications for a wide range of solid-state spin- and charge-based systems. We present an effective description of such networks for many qubits and give a derivation of a state transfer protocol for long-distance quantum communication. We also describe how to mediate local on-chip interactions by means of the optomechanical transducers that can be used for entangling gates. We finally discuss experimental systems for the realization of our proposal.

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  • Received 27 June 2011

DOI:https://doi.org/10.1103/PhysRevA.84.042341

©2011 American Physical Society

Authors & Affiliations

K. Stannigel1,2, P. Rabl1, A. S. Sørensen3, M. D. Lukin4, and P. Zoller1,2

  • 1Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences, A-6020 Innsbruck, Austria
  • 2Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria
  • 3QUANTOP, Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark
  • 4Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA

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Vol. 84, Iss. 4 — October 2011

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