Cavity-induced modifications of quantum jumps

Journal article
(Original article)

Publication Details

Author(s): von Zanthier J, Agarwal GS, Walther H
Journal: Physical Review A
Publisher: American Physical Society
Publication year: 1997
Volume: 56
Journal issue: 3
Pages range: 2242-2248
ISSN: 1050-2947


Complete density-matrix equations and a one-photon counting probability are used to examine the photon statistics of fluorescence light of a single three-level atom, weakly coupled to an external cavity of low Q value. The internal structure of the atom is supposed to be characterized by a weak and a strong transition. The strong transition is coherently driven by an external laser field, whereas no external field is acting on the weak transition. In free space the system exhibits quantum jumps. By placing the atom within the mirrors of an external cavity, tuned close to the transition frequency of the two upper levels, modifications in the quantum jump behavior of the atom are shown due to a modified spontaneous decay rate between the two states. In particular, it is demonstrated that the effect of the cavity is to modify the repetition rate of quantum jumps into the metastable dark state and the average duration of bright periods of fluorescence, whereas the average duration of dark periods is not changed in first order of the spontaneous decay rates involved. In view of current experiments in our laboratory a quantitative analysis is presented for the special case of a single indium ion located between the mirrors of a high-order symmetric confocal cavity.

FAU Authors / FAU Editors

von Zanthier, Joachim Prof. Dr.
Professur für Experimentalphysik

External institutions with authors

Max-Planck-Institute of Quantum Optics (MPQ) / Max-Planck-Institut für Quantenoptik
Oklahoma State University

How to cite

von Zanthier, J., Agarwal, G.S., & Walther, H. (1997). Cavity-induced modifications of quantum jumps. Physical Review A, 56(3), 2242-2248.

von Zanthier, Joachim, Girish S. Agarwal, and Herbert Walther. "Cavity-induced modifications of quantum jumps." Physical Review A 56.3 (1997): 2242-2248.


Last updated on 2018-28-12 at 20:50