TITLE:
Electromagnetically Induced Transparency Using a Artificial Molecule in Circuit Quantum Electrodynamics
AUTHORS:
Hai-Chao Li, Guo-Qin Ge
KEYWORDS:
EIT; Artificial Molecule; Complex Susceptibility
JOURNAL NAME:
Optics and Photonics Journal,
Vol.3 No.2B,
July
18,
2013
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.