Open AccessEffect of vacuum-induced coherence in a four-level atomic system via quantum interference
Author(s) -
Jun Chen,
Zhengdong Liu,
Jun Zheng,
Fang Hui-Juan
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.6441
Subject(s) - quantum interference , coherence (philosophical gambling strategy) , interference (communication) , quantum , physics , atomic coherence , atomic physics , quantum mechanics , computer science , telecommunications , laser , channel (broadcasting)
In this paperwe report the effects of vacuum-induced coherence in a laser-driven four-level atom consisting of three near-degenerate upper levels having an additional coherence term due to interaction with the vacuum of the radiation field. We show that such coherence preserves the electromagnetically induced transparency and optical bistability phenomena. The dynamical behavior of the population distribution via vacuum-induced coherence was also analyzed numerically.