Quantum-interference-initiated superradiant and subradiant emission from entangled atoms Academic Article uri icon


  • 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. 2011 American Physical Society.

published proceedings

  • Physical Review A

author list (cited authors)

  • Wiegner, R., von Zanthier, J., & Agarwal, G. S.

citation count

  • 63

complete list of authors

  • Wiegner, R||von Zanthier, J||Agarwal, GS

publication date

  • August 2011