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Related Experiment Video

Updated: May 14, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
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Published on: June 18, 2013

Homogeneous array of nanowire-embedded quantum light emitters.

M N Makhonin1, A P Foster, A B Krysa

  • 1Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom. m.makhonin@sheffield.ac.uk

Nano Letters
|February 13, 2013
PubMed
Summary
This summary is machine-generated.

We demonstrate scalable quantum information systems using III-V nanowires with single quantum dots. This approach offers precise control over qubit energy and site, crucial for developing advanced quantum computing technologies.

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Last Updated: May 14, 2026

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Area of Science:

  • Quantum Information Science
  • Nanotechnology
  • Semiconductor Physics

Background:

  • Scalable quantum information systems require minimized size and precise control over quantum bit (qubit) properties.
  • III-V semiconductor nanofabrication offers a promising route for integrating qubits with combined electronic and photonic functionalities.

Purpose of the Study:

  • To demonstrate uniform arrays of III-V nanowires, each containing a single quantum dot, for controlled qubit integration.
  • To investigate the optical properties and emission energy control of single nanowire quantum dots for scalability.

Main Methods:

  • Fabrication of uniform III-V nanowire arrays with embedded single quantum dots.
  • Optical characterization using photoluminescence spectroscopy to analyze exciton and biexciton emission.
  • Photon correlation measurements to confirm nonclassical emission and photon antibunching.

Main Results:

  • Single nanowire quantum dots exhibit narrow linewidth exciton and biexciton emission.
  • Demonstrated nonclassical emission with clear evidence of photon antibunching.
  • Achieved an ensemble emission energy broadening of 15 meV across more than 40 quantum dots.
  • Developed a model explaining large excited state separations in photoluminescence spectra.

Conclusions:

  • Deterministic site control and narrow emission energy distribution in III-V nanowire quantum dots are key for scalable quantum information applications.
  • This platform provides a viable path towards multiqubit quantum information processing.
  • The combined electronic/photonic functionality of III-V nanowires enhances their potential for quantum technologies.