Electromagnetically Induced Transparency Using a Artificial Molecule in Circuit Quantum Electrodynamics

Hai-Chao Li, Guo-Qin Ge

School of Physics, Huazhong University of Science and Technology, Wuhan, China.

DOI: 10.4236/opj.2013.32B007                

Abstract

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.

Keywords

EIT; Artificial Molecule; Complex Susceptibility

Conflicts of Interest

The authors declare no conflicts of interest.

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