Generation of multiphoton entangled quantum states by means of integrated frequency combs

• DOI: 10.1126/science.aad8532
• Publication Date: 2016-03-10T19:36:06Z
• Authors: Christian Reimer; Michael Kues; Piotr Roztocki; Benjamin Wetzel; Fabio Grazioso; Brent E. Little; Sai T. Chu; Tudor Johnston; Yaron Bromberg; Lucia Caspani; David J. Moss; Roberto Morandotti
• Keywords: Multidisciplinary Sciences; Kerr frequency combs; PHOTON-PAIR GENERATION; Science & Technology; optical photon states; quantum mechanics; Science & Technology - Other Topics; entangled quantum states; Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik; TIME; CIRCUITS

Entangled frequency combs

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 fiber and semiconductor technology, the results demonstrate a possible scalable and practical platform for quantum technologies.

Science , this issue p. 1176