Non-classical correlation of the two emission fields by a four-level atomic ensemble |
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Authors: | J-H Huang S-Y Zhu |
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Institution: | (1) Department of Physics, Hong Kong Baptist University, Hong Kong, P.R. China;(2) Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, 230026, P.R. China |
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Abstract: | The normalized second-order
correlation of the emission fields from a driven four-level atomic
ensemble is investigated theoretically by using the state vector
method. The violation of Cauchy-Schwarz inequality, which indicates
the establishment of non-classical correlation between two emission
fields, has been found. The effects of various decays and time delay
on the correlation are discussed in detail, which are helpful in
finding the ways to obtain high non-classical correlation. This
technique for the generation of non-classical light is operable
based on the current experimental technology and will lead to some
potential applications in quantum information science. |
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Keywords: | PACS" target="_blank">PACS 32 80 Qk Coherent control of atomic interactions with photons 03 67 Mn Entanglement production characterization and manipulation 42 50 Fx Cooperative phenomena in quantum optical systems |
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