Adjusting the left-handedness in a cold 87Rb atom via multiple parameter modulation
Abstract
We demonstrate the adjusting left-handedness in the cold \(87\)Rb atom by its number density, the strong coupling field and two incoherent pumping fields. The results show that more dense \(87\)Rb atoms and more stronger coupling field can influence the left-handedness more greatly, while the increasing two incoherent pumping fields construct the negative magnetic response but depress the negative electric response. The left-handedness adjusted by multiple parameter in the cold \(87\)Rb atomic system provides the flexibility and feasibility for the coming experiment.
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