Quantum-interference-initiated superradiant and subradiant emission from entangled atoms
Wiegner R, von Zanthier J, Agarwal GS (2011)
Publication Status: Published
Publication Type: Journal article
Publication year: 2011
Journal
Publisher: American Physical Society
Book Volume: 84
Article Number: 023805
Journal Issue: 2
DOI: 10.1103/PhysRevA.84.023805
Abstract
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.
Authors with CRIS profile
Ralph Wiegner
Institut für Optik, Information und Photonik
Joachim von Zanthier
Quantum Optics & Quantum Information
Related research project(s)
Involved external institutions
United States (USA) (US)How to cite
APA:
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
MLA:
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).
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