When a quantum system is put into an excited state, it will decay back to the ground state
through a process termed spontaneous emission. It is generally assumed that spontaneous …

We report theoretical and experimental studies of the propagation of a square-modulated
laser pulse through a laser-cooled atomic ensemble of two-level absorbers, as well as …

We demonstrate the fast and accurate control of the evolution of collective atomic
coherences in an erbium-doped solid using external electric fields. This is achieved by …

Compared to classical optical coherence theory based on Maxwell's electromagnetic theory
and Glauber's quantum optical coherence theory based on matrix mechanics formulation of …

The results of a series of pump–probe spectral hole-burning experiments are presented on
Yb3+-or Er3+-doped Li6Y (BO3) 3 (LYB) single crystals in the temperature range of 2–14 K …

A pump-probe-type saturation spectroscopic experiment has been performed at 980 nm to
measure the homogeneous linewidth of the^ 4 4 I _ 11/2 11/2–^ 4 4 I _ 15/2 15/2 transition …

Light, when reduced to the level of individual quanta, can possess, besides its familiar
properties of wavelength, direction, and polarization, a set of correlations irreducible to …

The wave side of wave–photon duality, describing light as an electromagnetic field (EMF), is
used in this article. The EMF of spontaneous light emission (SE) of a laser-excited atom is …

Spontaneous emission (SE) of an excited atom is the simplest example of a process where
atom interaction with electromagnetic field (EMF) takes place. First theory of SE has been …

În această lucrare este studiată interferenţa luminii, împrăştiate spontan de două puncte
cuantice care sunt excitate cu un fascicul laser coerent. Influenţa fononilor asupra tabloului …