image: This is a general view of the experiment used to demonstrate three-color entanglement. The optical parametric oscillator is inside the vacuum chamber (humorously painted to indicate that "God does indeed play dice"). This image relates to an article that appeared in the Sept. 17 issue of Science Express, published by AAAS. The study, by Dr. A.S. Coelho at Universidade de Sao Paulo in Sao Paulo, Brazil and colleagues, was titled, "Three-Color Entanglement." view more
Credit: [Image © Science/AAAS]