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Updated: Apr 25, 2026

Introduction to Solid Supported Membrane Based Electrophysiology
Published on: May 11, 2013
Observation of asymmetric transport in structures with active nonlinearities
N Bender1, S Factor1, J D Bodyfelt2
1Department of Physics, Wesleyan University, Middletown, Connecticut 06459, USA.
Abstract:
A mechanism for asymmetric transport which is based on parity-time-symmetric nonlinearities is presented. We show that in contrast to the case of conservative nonlinearities, an increase of the complementary conductance strength leads to a simultaneous increase of asymmetry and transmittance intensity. We experimentally demonstrate the phenomenon using a pair of coupled Van der Pol oscillators as a reference system, each with complementary anharmonic gain and loss conductances, connected to transmission lines. An equivalent optical setup is also proposed.
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