Chun-Hua Yuan, L. Q. Chen, Z. Y. Ou, Weiping Zhang
We theoretically present a new method to enhance Raman scattering by injecting seeded light field that is entangled with the initially prepared atomic spin wave. From theoretical analysis and numerical calculation, we find that strong Raman scattering can be obtained. Different from other enhancement mechanisms, the entanglement enhanced Raman scattering is phase sensitive. Such an enhancement method in Raman scattering may have practical applications in quantum information, nonlinear optics and optical metrology due to its simplicity.
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http://arxiv.org/abs/1211.6540
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