title: Objectively discerning Autler-Townes splitting from electromagnetically induced transparency.
abstract: Autler-Townes splitting (ATS) and electromagnetically induced transparency (EIT) both yield transparency in an absorption profile, but only EIT yields strong transparency for a weak pump field due to Fano interference. Empirically discriminating EIT from ATS is important but so far has been subjective. We introduce an objective method, based on Akaike's information criterion, to test ATS vs EIT from experimental data for three-level atomic systems and determine which pertains. We apply our method to a recently reported induced-transparency experiment in superconducting-circuit quantum electrodynamics.
authors: Hearne Institute for Theoretical Physics and Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA. petr@lsu.edu
authors: Petr M
authors: PM
authors: Anisimov
authors: Jonathan P
authors: JP
authors: Dowling
authors: Barry C
authors: BC
authors: Sanders