Quantum Coherence Effects in Four-level Diamond Atomic System

A symmetric four-level closed-loop \(\diamondsuit\) type (the diamond structure) atomic system driven by four coherent optical fields is investigated. The system shows rich quantum interference and coherence features. When symmetry of the system is broken, interesting phenomena such as single and do...

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Bibliographic Details
Published inarXiv.org
Main Authors Ou, Bao-Quan, Liang, Lin-Mei, Li, Cheng-Zu
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 28.10.2008
Subjects
Atomic structure
Coherence
Diamonds
Physics - Quantum Physics
Quantum phenomena
Symmetry
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Summary:A symmetric four-level closed-loop \(\diamondsuit\) type (the diamond structure) atomic system driven by four coherent optical fields is investigated. The system shows rich quantum interference and coherence features. When symmetry of the system is broken, interesting phenomena such as single and double dark resonances appear. As a result, the double electromagnetically induced transparency effect is generated, which will facilitate the implementation of quantum phase gate operation.
ISSN:2331-8422
DOI:10.48550/arxiv.0810.4970