期刊
EUROPEAN PHYSICAL JOURNAL D
卷 55, 期 1, 页码 161-166出版社
SPRINGER
DOI: 10.1140/epjd/e2009-00205-7
关键词
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资金
- NSF of China [0478029, 10575040, 10634060, 90503010, 10704017]
- National Fundamental Research Program of China [2005CB724508]
- Foundation from the Ministry of the National Education of China [200804870051]
The authors show the formation of slow temporal vector optical solitons in a cold lifetime-broadened four-level inverted-Y atomic system. We demonstrate that Maxwell's equations for describing two orthogonally polarised components of a low intensity signal field can evolve into two coupled nonlinear Schrodinger equations, which results in various distortion-free temporal vector optical solitons, such as bright-bright or dark-dark vector solitons. These results are produced from the correct balance between dispersion, self- nd cross-phase modulation (SPM and XPM) effects. We also show that the integrable Manakov model can be realised by adjusting the corresponding SPM, XPM and dispersion effects of this inverted-Y atomic system.
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