Quantum jumps induced by the center-of-mass motion of a trapped atom

Abstract

We theoretically study the occurrence of quantum jumps in the resonance fluorescence of a trapped atom. Here, the atom is laser cooled in a configuration of level such that the occurrence of a quantum jump is associated to a change of the vibrational center-of-mass motion by one phonon. The statistics of the occurrence of the dark fluorescence period is studied as a function of the physical parameters and the corresponding features in the spectrum of resonance fluorescence are identified. We discuss the information which can be extracted on the atomic motion from the observation of a quantum jump in the considered setup.

Closed-form solution of Lindblad master equations without gain

“…In particular the extension to non-zero temperature baths comes to our mind as the Lindbladian term that accounts for the incoherent pumping or gain acts typically with a smaller strength. In this way the eigensystem obtained with this construction might be used as a starting point to solve more general problems using perturbation theory such as the evaluation resonance fluorescence spectra [26,27] or the derivation of reduced master equations [6].…”

Resonance fluorescence of a laser-cooled atom in a non-harmonic potential

“…( 6), the so-called damping basis [29,30]. This method has already been applied for the description of light scattering [13,15,31,32] and laser cooling [11,12] of harmonically trapped atoms in the Lamb-Dicke limit.…”