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Related Experiment Videos

Spatial quantum correlations in multiple scattered light.

P Lodahl1, A P Mosk, A Lagendijk

  • 1Complex Photonic Systems, Department of Science and Technology, MESA Research Institute, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands. pel@com.dtu.dk

Physical Review Letters
|December 31, 2005
PubMed
Summary
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Researchers predict a novel spatial quantum correlation in light interacting with random media. This quantum effect, dependent on light

Area of Science:

  • Quantum optics
  • Condensed matter physics
  • Wave propagation in disordered systems

Background:

  • Mesoscopic physics studies correlations in disordered systems.
  • Classical intensity correlations are well-established in random media.

Purpose of the Study:

  • To predict a new type of spatial quantum correlation in light.
  • To investigate the properties and observability of this quantum correlation.

Main Methods:

  • Theoretical prediction of quantum correlations.
  • Analysis of light propagation through multiple scattering random media.

Main Results:

  • A novel, infinite-range spatial quantum correlation in light is predicted.
  • This quantum correlation depends on the initial quantum state of light.

Related Experiment Videos

  • The quantum correlation dominates over classical mesoscopic correlations.

    • Conclusions:

    • The predicted spatial quantum correlation is a fundamental quantum effect in disordered photonics.
    • It is observable through quantum fluctuations in total transmission or reflection.
    • This finding opens new avenues for quantum light-matter interactions in random media.