Photon-Photon Entanglement with a Single Trapped Atom

Autor: Weber, B., Specht, H. P., Mueller, T., Bochmann, J., Muecke, M., Moehring, D. L., Rempe, G.
Rok vydání: 2008
Předmět:
Zdroj: Phys. Rev. Lett. 102, 030501 (2009)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.102.030501
Popis: An experiment is performed where a single rubidium atom trapped within a high-finesse optical cavity emits two independently triggered entangled photons. The entanglement is mediated by the atom and is characterized both by a Bell inequality violation of S=2.5, as well as full quantum-state tomography, resulting in a fidelity exceeding F=90%. The combination of cavity-QED and trapped atom techniques makes our protocol inherently deterministic - an essential step for the generation of scalable entanglement between the nodes of a distributed quantum network.
Comment: 5 pages, 4 figures
Databáze: arXiv