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Updated: Jun 28, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
Published on: April 4, 2017
Quantum interferences in cooperative Dicke emission from spatial variation of the laser phase
Sumanta Das1, G S Agarwal, Marlan O Scully
1Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078, USA.
Abstract:
We report the generation of a new quantum interference effect in spontaneous emission from a resonantly driven system of two identical two-level atoms due to the spatial variation of the laser phase at the positions of the atoms. This interference affects significantly the spectral features of the emitted radiation and the quantum entanglement in the system. The interference leads to dynamic coupling of the populations and coherences in a basis, determined by the laser phase and represents a kind of vacuum mediated superexchange between the symmetric and antisymmetric states.
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