title: Negative phase time for scattering at quantum wells: a microwave analogy experiment.
abstract: If a quantum mechanical particle is scattered by a potential well, the wave function of the particle can propagate with negative phase time. Because of the analogy of the Schrödinger and Helmholtz equations this phenomenon is expected to be observable for electromagnetic wave propagation. Experimental data for electromagnetic wells realized by waveguides filled with different dielectrics now confirm this conjecture.
authors: Universität zu Koln, II. Physikalisches Institut, Zülpicher Strasse 77, D-50937 Köln, Germany.
authors: R M
authors: RM
authors: Vetter
authors: A
authors: A
authors: Haibel
authors: G
authors: G
authors: Nimtz