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Phys. Rev. Lett. 94, 153905 (2005) [4 pages]

Transport of Quantum Noise through Random Media

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P. Lodahl* and A. Lagendijk
Complex Photonic Systems, Department of Science and Technology and MESA+ Research Institute, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands

Received 1 September 2004; published 22 April 2005

We present an experimental study of the propagation of quantum noise in a multiple scattering random medium. Both static and dynamic scattering measurements are performed: the total transmission of noise is related to the mean free path for scattering, while the noise frequency correlation function determines the diffusion constant. The quantum noise observables are found to scale markedly differently with scattering parameters compared to classical noise observables. The measurements are explained with a full quantum model of multiple scattering.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.153905
DOI:
10.1103/PhysRevLett.94.153905
PACS:
42.25.Dd, 42.50.Lc, 78.67.−n

*Present address: Research Center COM, Technical University of Denmark, Dk-2800 Lyngby, Denmark.

Electronic address: pel@com.dtu.dk