| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Vacuum induced transparency and slow light phenomena in a two-level atomic ensemble controlled by a cavity |
| Guo Yu-Jie (郭玉杰)a b, Nie Wen-Jie (聂文杰)c |
a Department of Physics, Tsinghua University, Beijing 100084, China;
b Beijing Computational Science Research Center, Beijing 100094, China;
c Department of Applied Physics, East China Jiaotong University, Nanchang 330013, China |
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Abstract We study the optical properties of a two-level atomic ensemble controlled by a high-finesse cavity. Even though the cavity is initially in the vacuum state in the absence of external driving, the probe response of the atomic ensemble can be dramatically modified. When the collectively enhanced atom-cavity coupling is strong enough and the cavity decay rate is much smaller than the atomic damping rate, an electromagnetically induced transparency-like coherent phenomenon emerges with a dip absorption for the response of the two-level atoms in the cavity without driving, and thus is called vacuum induced transparency. We also show the slow light with very low group velocity in such an atomic ensemble.
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Received: 26 December 2014
Revised: 13 March 2015
Accepted manuscript online:
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PACS:
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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42.25.Bs
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(Wave propagation, transmission and absorption)
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42.50.Pq
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(Cavity quantum electrodynamics; micromasers)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11304010). |
Corresponding Authors:
Guo Yu-Jie
E-mail: guoyujie@csrc.ac.cn
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Cite this article:
Guo Yu-Jie (郭玉杰), Nie Wen-Jie (聂文杰) Vacuum induced transparency and slow light phenomena in a two-level atomic ensemble controlled by a cavity 2015 Chin. Phys. B 24 094205
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