197 research outputs found
Perturbative approach to diatomic lattices
By using a small rotation approach, we show that it is possible to obtain
well behaved perturbed solutions for the amplitude of the electromagnetic field
propagating in a photonic waveguide array. This array mimics the propagation of
a quasiparticle among the sites of an infinite one-dimensional chain.Comment: 7 pages, 4 figure
Effect of the nearby levels on the resonance fluorescence spectrum of the atom-field interaction
We study the resonance fluorescence in the Jaynes-Cummings model when nearby
levels are taking into account. We show that the Stark shift produced by such
levels generates a displacement of the peaks of the resonance fluorescence due
to an induced effective detuning and also induces an asymmetry. Specific
results are presented assuming a coherent and a thermal fields
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