Foundations of Physics

, Volume 45, Issue 2, pp 198–210

Electromagnetically Induced Transparency and Autler–Townes Splitting in a Superconducting Quantum Circuit with a Four-Level V-Type Energy Spectrum

Article

DOI: 10.1007/s10701-014-9861-6

Cite this article as:
Li, H., Ge, G., Liao, L. et al. Found Phys (2015) 45: 198. doi:10.1007/s10701-014-9861-6

Abstract

We investigate electromagnetically induced transparency (EIT) and Autler–Townes splitting (ATS) in a superconducting quantum circuit with a four-level V-type energy spectrum constructed by two coupled superconducting charge qubits. We show that it is possible for this four-level superconducting system to exhibit multiple dips in the absorption spectrum of a probe field, with at most three dips resulting from a combination of two ATS subsystems, which indicates the breakdown of the traditional correspondence between a \((N+1)\)-level system and \(N-1\) dips. It is also shown that the switching from EIT to ATS can be realized in a three-level ladder-type subsystem.

Keywords

Electromagnetically induced transparency Autler–Townes splitting Four-level superconducting quantum circuit 

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Haichao Li
    • 1
  • Guoqin Ge
    • 1
  • Lingmin Liao
    • 1
  • Shunbin Feng
    • 1
  1. 1.School of PhysicsHuazhong University of Science and TechnologyWuhanPeople’s Republic of China