Observation of Asymmetric Transport in Structures with Active Nonlinearities
Observation of Asymmetric Transport in Structures with Active Nonlinearities
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DOI：
10.1103/physrevlett.110.234101
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发表时间：
2013-06-04
影响因子：
8.6
通讯作者：
Kottos, T.
中科院分区：
文献类型：
--
作者：
Bender, N.;Factor, S.;Kottos, T.
提出了一种基于奇偶时间对称非线性的非对称输运机制。我们表明，在保守的非线性的情况下，互补电导强度的增加导致同时增加的不对称性和透射强度。我们实验证明的现象，使用一对耦合的货车德尔波尔振荡器作为参考系统，每个互补的非谐波增益和损耗电导，连接到传输线。还提出了一种等效的光学装置。
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.