2 papers
quant-ph2008
Comment on "Direct space-time observation of pulse tunneling in an electromagnetic band gap"
G. Nimtz, A. A. Stahlhofen
The investigation presented by Doiron, Hache, and Winful [Phys. Rev. A 76, 023823 (2007)] is not valid for the tunneling process as claimed in the paper.
quant-ph2007
Comment on: Direct space-time observation of pulse tunneling in an electromagnetic band gap, S.Doiron,A.Hache,H.Winful
G. Nimtz, A. A. Stahlhofen
The title of this article is misleading. The authors have investigated a resonator but not a tunneling barrier see also Refs.\cite{Winful2} The measured superluminal group velocity…