Transmission through surface-corrugated unidirectional waveguides.

摘要: We study wave transmission G through quasi-one-dimensional waveguides with constant cross section. Constant section means that an infinite set of lines the same length (that do not intersect each other) which are perpendicular to one boundary waveguide also other boundary. This makes sign tangential velocity for all collision points arbitrary particle trajectory stay constant, so classical or ray dynamics in is unidirectional. In particular, we report systematic enhancement unidirectional corrugated when contrasting their properties those equivalent constant-width (for since particles moving direction along can change its motion). Also, verify universality distribution transmissions P(G) diffusive ( ⟨ ⟩ > 1) and localized ≪ regimes transport. Moreover, show transition regime, ∼ 1, well described by DMPK approach (the Fokker-Planck Dorokhov, Mello, Pereyra, Kumar) bulk-disordered wires.