Probing decoherence with electromagnetically induced transparency in superconductive quantum circuits

Phys Rev Lett. 2004 Aug 20;93(8):087003. doi: 10.1103/PhysRevLett.93.087003. Epub 2004 Aug 17.

Abstract

Superconductive quantum circuits comprise quantized energy levels that may be coupled via microwave electromagnetic fields. Described in this way, one may draw a close analogy to atoms with internal (electronic) levels coupled by laser light fields. In this Letter, we present a superconductive analog to electromagnetically induced transparency that utilizes superconductive quantum circuit designs of present day experimental consideration. We discuss how a superconductive analog to electromagnetically induced transparency can be used to establish macroscopic coherence in such systems and, thereby, be utilized as a sensitive probe of decoherence.