Polarization Conversion of Single Photon via Scattering by a Λ System in a Semi-Infinite Waveguide

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2019,（5）
• 页码范围: 23-26
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/36/5/054201

摘要

We theoretically investigate single-photon polarization conversion via scattering by an atom with Λ configuration coupled to a semi-infinite waveguide and discuss the two cases in which the Λ system is non-degenerated and degenerated.By applying the hard-wall boundary condition of the semi-infinite waveguide,it is found that singlephoton polarization conversion can be realized with unit probability for both cases under the ideal condition.Together with the polarization conversion,the frequency conversion of a single photon can also be realized with unit probability in the ideal case if the Λ system is not degenerated.