The March 11 issue of Science features an article co-authored by Dr. ST Chu. The paper, by Reimer et al., is entitled “Generation of multi photon entangled quantum states by means of integrated frequency comb”. Here is the Editor’s summary: The ability to generate optical frequency combs in which the output light is made up of millions of sharp lines precisely spaced apart has been important for optical applications and for fundamental science. Reimer et al. now show that frequency combs can be taken into the quantum regime. They took individual teeth of the combs and quantum-mechanically entangled them to form complex optical states. Because the method is compatible with existing finer and semiconductor technology, the results demonstrate a possible scalable and practical platform for quantum technologies.
Read more at Science: http://science.sciencemag.org/content/351/6278/1176.
11 Mar 2016