2008/11/21 by Stephan Smolka, Alexander Huck, Ulrik L. Andersen +3 · 1 citation
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum optics and atomic interactions #Random lasers and scattering media #cond-mat.dis-nn #quant-ph
paper · pdf · doi:10.1103/physrevlett.102.193901
published as Physical Review Letters, 102, 193901 (2009).
arxiv created 2008/11/21 · openalex publication_date 2009/05/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present the experimental realization of spatial quantum correlations of photons that are induced by multiple scattering of squeezed light. The quantum correlation relates photons propagating along two different light paths through the random medium and is infinite in range. Both positive and negative spatial quantum correlations are observed when varying the quantum state incident to the multiple scattering medium, and the strength of the correlations is controlled by the number of photons. The experimental results are in excellent agreement with recent theoretical proposals by implementing the full quantum model of multiple scattering.