Abstract We study the light propagation properties in a V-type three-level atomic system interacting with two independent broadband squeezed baths. Using the graphic method, the dependences of the absorption and the dispersion of the system on the coupling field strength, the incoherent pumping field strength and the intensity of the squeezed vacuum are analysed. The result shows that the probe pulse propagation can be changed from subluminal to superluminal speed.
Received: 14 July 2011
Revised: 29 August 2011
Accepted manuscript online:
PACS:
32.80.Qk
(Coherent control of atomic interactions with photons)
Zhang Qin(张琴), Qu Guang-Hui(屈光辉), Tang Yuan-He(唐远河), Jin Kang(金康), and Ji Wei-Li(纪卫莉) Subluminal to superluminal light propagation in a V-type three-level atomic system interacting with squeezed vacuum 2012 Chin. Phys. B 21 023201
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