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Volume 11 Issue 3, March 2016

A violation of the so-called Bell inequality represents a strong proof of the ability to create and control quantum states of a pair of quantum bits with no classical analogues. Andrea Morello and co-workers have now demonstrated a violation of Bell’s inequality in a pair of qubits in silicon, encoded in the electron spin and the nuclear spin associated with a single phosphorus donor embedded in a nanoelectronic device. The cover image is an artist’s impression of visual fragments mapped spatially from data directly extracted from the measurement of the quantum state of the phosphorus atom. It expresses the creation of entangled qubits that lie at the heart of quantum computation.

Letter p242; News & Views p216

IMAGE: PAUL THOMAS (UNSW), IN COLLABORATION WITH K. RAXWORTHY (CURTIN UNIV.), A. MORELLO AND J. P. DEHOLLAIN (UNSW)

COVER DESIGN: BETHANY VUKOMANOVIC

Editorial

  • Reliable and consistent technological achievements are required for the development of quantum technologies.

    Editorial

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  • Although undetectable by macroscopic magnetic probes, antiferromagnetic order could be used in future spintronic devices.

    Editorial
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Commentary

  • Increasing globalization means that traditional occupational epidemiological approaches may no longer apply, suggesting a need for an alternative model to assess the long-term impact of nanomaterial exposure on health.

    • Michaela Kendall
    • Iseult Lynch
    Commentary
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Correction

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Thesis

  • The potential risks surrounding nanotechnology can often appear complex and confusing. But with some basic guideposts, argues Andrew D. Maynard, navigating them can become a little easier.

    • Andrew D. Maynard
    Thesis
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Research Highlights

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News & Views

  • Cowpea mosaic virus nanoparticles can induce the immune system to clear metastatic cancers.

    • Pier Paolo Peruzzi
    • E. Antonio Chiocca
    News & Views
  • With fast, adaptive control over the spin of a single electron, magnetic fields can now be measured at the very limits allowed by quantum physics.

    • Stephen D. Bartlett
    News & Views
  • An entangled state of two spin qubits in silicon has been prepared and measured, yielding a violation of Bell's inequality that is the largest achieved in the solid state so far.

    • Susan Coppersmith
    News & Views
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Review Article

  • This article reviews recent progress in the use of graphene and other two-dimensional atomic crystals in catalytic applications, highlighting the activity and potential of heterogeneous systems such as van der Waals heterostructures.

    • Dehui Deng
    • K. S. Novoselov
    • Xinhe Bao
    Review Article
  • This article reviews efforts to control and monitor the magnetization in antiferromagnetic materials, as well as the prospects for antiferromagnetic spintronics applications.

    • T. Jungwirth
    • X. Marti
    • J. Wunderlich
    Review Article
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Letter

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Article

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In the Classroom

  • A joint research platform is a great playground for young researchers to combine fundamental and applied research, says Diana Nanova.

    • Diana Nanova
    In the Classroom
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