Electromagnetically Induced Transparency Using a Artificial Molecule in Circuit Quantum Electrodynamics

• 作者: Guo-Qin Ge Hai-Chao Li
• 来源期刊: 光学与光子学期刊(英文)
• 学科: 物理学
• 关键词: EIT Artificial MOLECULE Complex SUSCEPTIBILITY
• 年，卷（期）: 2013,（2）
• 页码范围: 29-33
• 页数: 5页
• 分类号: O43

摘要

Electromagnetically induced transparency (EIT) having wide applications in quantum optics and nonlinear optics is explored ordinarily in various atomic systems. In this paper we present a theoretical study of EIT using supercon- ducting circuit with a V-type artificial molecule constructed by two Josephson charge qubits coupled each other through a large capacitor. In our theoretical model we make a steady state approximation and obtain the analytical expressions of the complex susceptibility for the artificial system via the density matrix formalism. The complex susceptibility has additional dependence on the qubit parameters and hence can be tuned to a certain extent.