Quantum-interference-initiated superradiant and subradiant emission from entangled atoms

Journal article

Publication Details

Author(s): Wiegner R, von Zanthier J, Agarwal GS
Journal: Physical Review A
Publisher: American Physical Society
Publication year: 2011
Volume: 84
Journal issue: 2
ISSN: 1050-2947


We calculate the radiative characteristics of emission from a system of entangled atoms which can have a relative distance larger than the emission wavelength. We develop a quantum multipath interference approach which explains both super-and subradiance though the entangled states have zero dipole moment. We derive a formula for the radiated intensity in terms of different interfering pathways. We further show how the interferences lead to directional emission from atoms prepared in symmetric W states. As a byproduct of our work we show how Dicke's classic result can be understood in terms of interfering pathways. In contrast to the previous works on ensembles of atoms, we focus on finite numbers of atoms prepared in well characterized states.

FAU Authors / FAU Editors

von Zanthier, Joachim Prof. Dr.
Professur für Experimentalphysik
Wiegner, Ralph
Institut für Optik, Information und Photonik

External institutions
Oklahoma State University

How to cite

Wiegner, R., von Zanthier, J., & Agarwal, G.S. (2011). Quantum-interference-initiated superradiant and subradiant emission from entangled atoms. Physical Review A, 84(2). https://dx.doi.org/10.1103/PhysRevA.84.023805

Wiegner, Ralph, Joachim von Zanthier, and G. S. Agarwal. "Quantum-interference-initiated superradiant and subradiant emission from entangled atoms." Physical Review A 84.2 (2011).


Last updated on 2019-22-02 at 13:40