2014/03/29 by Herbst, I., Rama, J.
#81Q99 #FOS: Physical sciences #Quantum Physics (quant-ph)
paper · doi:10.48550/arxiv.1403.7675
For atoms described by a 1-dimensional Friedrichs model we present the following result: pre-existing resonances, when subjected to a small constant electric field (DC Stark effect), are unstable in the weak field limit. In contrast, pre-existing resonances under the influence of a small time-periodic electric field (AC Stark effect) are stable in this limit. This article is a review of our results in "Instability of pre-existing resonances under a small constant electric field", arXiv:1310.4745.