Physics – Atomic Physics
Scientific paper
2008-07-07
J. Phys. A: Math. Theor. 42 (2009) 245307
Physics
Atomic Physics
4+ pages, 2 figures, submitted for publication; included a discussion on the entanglement
Scientific paper
10.1088/1751-8113/42/24/245307
A two-level atom interacting with a single mode of quantized electromagnetic radiation is discussed using a representation in which the atom and the radiation are unified into a {\em new} canonical radiation. At the {\em twice-resonance}, when the frequency of the original radiation is twice the atomic transition frequency ($\omega=2\epsilon$), the {\em emergent} unified field in the non-interacting atom-field system resembles a free radiation of frequency $\epsilon$. This free emergent radiation is further shown to exist in the presence of an interaction which looks similar to the atom-field interaction in the dipole approximation. The one-photon correlation and the population inversion are discussed as the possible means of observing the emergent radiation. The entanglement properties of the emergent radiation are also discussed.
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