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Simulating Quantum Fields with Cavity QED

Sean Barrett, Klemens Hammerer, Sarah Harrison, Tracy E. Northup, and Tobias J. Osborne
Phys. Rev. Lett. 110, 090501 – Published 26 February 2013
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Abstract

As the realization of a fully operational quantum computer remains distant, quantum simulation, whereby one quantum system is engineered to simulate another, becomes a key goal of great practical importance. Here we report on a variational method exploiting the natural physics of cavity QED architectures to simulate strongly interacting quantum fields. Our scheme is broadly applicable to any architecture involving tunable and strongly nonlinear interactions with light; as an example, we demonstrate that existing cavity devices could simulate models of strongly interacting bosons. The scheme can be extended to simulate systems of entangled multicomponent fields, beyond the reach of existing classical simulation methods.

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  • Received 8 November 2012

DOI:https://doi.org/10.1103/PhysRevLett.110.090501

© 2013 American Physical Society

Authors & Affiliations

Sean Barrett1,*, Klemens Hammerer2,3, Sarah Harrison4,2, Tracy E. Northup5, and Tobias J. Osborne2

  • 1QOLS, Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom
  • 2Institute for Theoretical Physics, Leibniz University, 30167 Hannover, Germany
  • 3Institute for Gravitational Physics, Leibniz University, 30167 Hannover, Germany
  • 4Department of Mathematics, Royal Holloway, University of London, Egham TW20 OEX, United Kingdom
  • 5Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria

  • *Deceased.

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Issue

Vol. 110, Iss. 9 — 1 March 2013

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