Two-level system in a very strong field

Z. K. Yankauskas, G. I. Valyukenas

Nikolai B. Delone, В. П. Крайнов, V. A. Khodovoǐ

Nikolai B. Delone, В. П. Крайнов, V. A. Khodovoǐ

И. Д. Феранчук, А. В. Леонов

Titus Sandu

Usually, fluorescence of a two-level system increases with the coupling strength to an electromagnetic field. However, we show numerically that the fluorescence is quenched in the ultra-strong coupling limit of a two-level system interacting with an electromagnetic field. This behavior is attributed to the onset of multi-photon processes which occur for the ultra-strong coupling between the two-level system and the electromagnetic field.

I. V. Lebedev