| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1539109 | Optics Communications | 2009 | 8 Pages |
Abstract
A symmetric four-level closed-loop ♢♢ type (the diamond-shape) 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 controllable double electromagnetically induced transparency (EIT) effect is generated, which will facilitate the implementation of quantum phase gate (QPG) operation.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Bao-Quan Ou, Lin-Mei Liang, Cheng-Zu Li,