Open AccessGeneration of two-mode photon-atom quadrature squeezing based on enhanced raman scattering
Author(s) -
Shao Hui-li,
Liangwei Dong,
Yan Xue,
Liqing Chen,
Chun-Hua Yuan
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.014202
Subject(s) - raman scattering , physics , photon , excitation , atom (system on chip) , raman spectroscopy , coherence (philosophical gambling strategy) , atomic physics , x ray raman scattering , scattering , atomic coherence , field (mathematics) , optics , quantum mechanics , laser , computer science , embedded system , mathematics , pure mathematics
Enhanced Raman scattering can be obtained by the initially prepared atomic spin excitation, or by injecting a seeded light field which is correlated with the initially prepared atomic spin excitation. This paper theoretically calculated the quantum fluctuations of the quadrature components of the two-mode photon-atom quantum interface and found that the enhanced Raman scattering based on coherence can improve the initial photon-atom squeezing slightly in a certain scope, and correlation-enhanced Raman scattering can produce strong two-mode squeezing of photon-atom. Such a strong two-mode squeezed state at the photon-atom interface has very important applications in precision measurement research based on the light field and atomic system.