Jinxian Guo
East China Normal University
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Featured researches published by Jinxian Guo.
arXiv: Quantum Physics | 2016
Cheng Qiu; Shuying Chen; L. Q. Chen; Bing Chen; Jinxian Guo; Z. Y. Ou; Weiping Zhang
Coherent wave splitting is crucial in interferometers. Normally, the waves after this splitting are of the same type. But recent progress in interaction between atom and light has led to the coherent conversion of photon to atomic excitation. This makes it possible to split an incoming light wave into a coherent superposition state of atom and light and paves the way for an interferometer made of different types of waves. Here we report on a Rabi-like coherent-superposition oscillation observed between atom and light and a coherent mixing of light wave with excited atomic spin wave in a Raman process. We construct a new kind of hybrid interferometer based on the atom-light coherent superposition state. Interference fringes are observed in both optical output intensity and atomic output in terms of the atomic spin wave strength when we scan either or both of the optical and atomic phases. Such a hybrid interferometer can be used to interrogate atomic states by optical detection and will find its applications in precision measurement and quantum control of atoms and light.
Applied Physics Letters | 2015
Bing Chen; Cheng Qiu; L. Q. Chen; Kai Zhang; Jinxian Guo; Chun-Hua Yuan; Z. Y. Ou; Weiping Zhang
A phase sensitive Raman scattering was experimentally demonstrated by injecting a Stokes light seed into an atomic ensemble, whose internal state is set in such a way that it is coherent with the input Stokes seed. Such phase sensitive characteristic is a result of interference effect due to the phase correlation between the injected Stokes light field and the internal state of the atomic ensemble in the Raman process. Furthermore, the constructive interference leads to a Raman efficiency larger than other kinds of Raman processes such as stimulated Raman process with Stokes seed injection alone or uncorrelated light-atom seeding. It may find applications in precision spectroscopy, quantum optics, and precise measurement.
Optics Letters | 2017
Jinxian Guo; L. Q. Chen; Peiyu Yang; Zhengjun Li; Yuan Wu; Xiaotian Feng; Chun-Hua Yuan; Z. Y. Ou; Weiping Zhang
In studying quantum correlation and quantum memory of continuous variables of light fields and atoms, a crucial step is the retrieval of the quantum fields by converting an atomic spin wave to light, and retrieval efficiency is a crucial parameter. In this Letter, we implement a double-pass Raman scheme in Rb87 by incorporating coherent feedback. We find that the transfer efficiency from an atomic spin wave, which is generated from a Raman process in a high gain regime, to light fields is enhanced by the double-pass scheme as compared to the commonly used single-pass scheme. An atomic spin wave as high as 88% is read out, limited only by decoherence of the atomic spin waves. Our analysis shows that the enhancement effect is because a double-pass scheme introduced the coherent feedback mechanism which selects the spatial mode of an atomic spin wave via the correlated optical field and enhances the coupling efficiency between the atom and light. The correlations between the write-in and readout signals generated in such a two-pass Raman process are also better than the single-pass case. We believe such a two-pass scheme with feedback mechanism should be useful for studying continuous variables in quantum systems.
Optics Express | 2015
Jinxian Guo; Kai Zhang; L. Q. Chen; Chun-Hua Yuan; Cheng-ling Bian; Z. Y. Ou; Weiping Zhang
We demonstrate experimentally controlled storage and retrieval of the optical phase information in a higher-order interference scheme based on Raman process in (87)Rb atomic vapor cells. An interference pattern is observed in intensity correlation measurement between the write Stokes field and the delayed read Stokes field as the phase of the Raman write field is scanned. This result implies that the phase information of the Raman write field can be written into the atomic spin wave via Raman process in a high gain regime and subsequently read out via a spin-wave enhanced Raman process, thus achieving optical storage of phase information. This technique should find applications in optical phase image storage, holography and information processing.
Physical Review Letters | 2015
Bing Chen; Cheng Qiu; Shuying Chen; Jinxian Guo; L. Q. Chen; Z. Y. Ou; Weiping Zhang
Physical Review A | 2014
Kai Zhang; Jinxian Guo; L. Q. Chen; Chun-Hua Yuan; Z. Y. Ou; Weiping Zhang
Physical Review A | 2014
Kai Zhang; Jinxian Guo; Chun-Hua Yuan; L. Q. Chen; Cheng-ling Bian; Bing Chen; Z. Y. Ou; Weiping Zhang
arXiv: Quantum Physics | 2018
Jinxian Guo; Xiaotian Feng; Peiyu Yang; Zhifei Yu; L. Q. Chen; Chun-Hua Yuan; Weiping Zhang
arXiv: Quantum Physics | 2015
Guzhi Bao; Xiaotian Feng; Bing Chen; Jinxian Guo; Heng Shen; L. Q. Chen; Weiping Zhang
Author | 2015
Bing Chen; Shuying Qiu; Jinxian Guo; L. Q. Chen; Z. Y. Ou; Weiping Zhang