Controllable double electromagnetically induced transparency in a closed four-level-loop cavity–atom system
(color online) The intensity ratio of the transmitted probe field versus the probe frequency detuning for (a) φ = 0, (b) 
Controllable double electromagnetically induced transparency in a closed four-level-loop cavity–atom system |
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(color online) The intensity ratio of the transmitted probe field versus the probe frequency detuning for (a) φ = 0, (b) |
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