“tack” Ion Trap for Efficient Photon Collection

for Workshop Ion Trap Technology, February 16 – 17, 2011, NIST Quantum Interference and Superradiance from entangled Atoms R.Wiegner, J. von Zanthier, G. S. AgarwalInstitut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, Erlangen, GermanyDepartment of Physics, Oklahoma State University, Stillwater, Oklahoma, USA Recent years have seen the ability to create large varieties of entangled states among radiatingparticles. The question then arises how the optical properties of such entangled photonsources differ from a radiating source in a separable state. We investigate fundamentalprocesses like emission and scattering of radiation from entangled systems. We show howentanglement can lead to enhancement of basic processes by explicitly taking into account thevarious quantum paths. We relate enhancement to quantum interference of multiple photonpathways. Our work also shows how Dicke super radiance from states with zero dipolemoment can be understood as interference phenomena.