Distillability criterion for all bipartite Gaussian states

  • Authors:

  • Geza Giedke;Lu-Ming Duan;J. Ignacio Cirac;Peter Zoller

  • Affiliations:

  • Institut für Theoretische Physik, Universität Innsbruck, Innsbruck, Austria;Institut für Theoretische Physik, Universität Innsbruck, Innsbruck, Austria;Institut für Theoretische Physik, Universität Innsbruck, Innsbruck, Austria;Institut für Theoretische Physik, Universität Innsbruck, Innsbruck, Austria

  • Venue:
  • Quantum Information & Computation
  • Year:
  • 2001

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Abstract

We prove that all inseparable Gaussian states of two modes can be distilled into maximally entangled pure states by local operations. Using this result we show that a bipartite Gaussian state of arbitrarily many modes can be distilled if and only if its partial transpose is not positive.