Bender NFactor SBodyfelt JDRamezani HChristodoulides DNEllis FMKottos T4/06/20137/06/2013PHYSICAL REVIEW LETTERS, 2013, 110 (23)0031-9007https://hdl.handle.net/10179/7472A 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.Journal article10.1103/PhysRevLett.110.2341011978261079-7114Massey_Dark01 Mathematical Sciences02 Physical Sciences09 Engineering