1. The difference in noise property between the Autler Townes splitting medium and the electromagnetically induced transparent medium.
- Author
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Li Zhong-Hua, Li Yuan, Dou Ya-Fang, and Zhang Jun-Xiang
- Subjects
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ELECTRONIC noise , *ELECTROMAGNETISM , *ATOMS , *STARK effect , *QUANTUM information science , *INFORMATION processing - Abstract
The quantum noise of squeezed probe light passing through an atomic system with different electromagnetically induced transparency and Autler-Townes splitting effects is investigated theoretically. It is found that the optimal squeezing preservation of the outgoing probe beam occurs in the strong-coupling-field regime rather than in the weakcoupling- field regime. In the weak-coupling-field regime, which was recently recognized as the electromagnetically induced transparency regime (Abi-Salloum T Y 2010 Phys. Rev. A 81 053836), the output amplitude noise is affected mainly by the atomic noise originating from the random decay process of atoms. While in the strong-coupling-field regime, defined as the Autler-Townes splitting regime, the output amplitude noise is affected mainly by the phase-toamplitude conversion noise. This is useful in improving the quality of the experiment for efficient quantum memory, and hence has an application in quantum information processing. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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