标题： 对“硅光子电路中非互易光传播”的评论 显示英文标题

标题： Comment to "Nonreciprocal Light Propagation in a Silicon Photonic Circuit"

摘要： 在文章“硅光子电路中的非互易光传播”（《科学》333, 729-733 (2011)）中，报告了一种基于硅、电介质和金属组合的非互易波导系统。 在本评论中解释了该论文中关于非互易性的解释是错误的，并与基本的洛伦兹互易定理相冲突。 还指出之前的一篇出版物已经介绍了该器件概念。 显示英文摘要

摘要： In the article "Nonreciprocal Light Propagation in a Silicon Photonic Circuit" (Science 333, 729-733 (2011) a nonreciprocal waveguide system based on a combination of silicon, dielectrics and metals is reported. In this Comment it is explained that the interpretation with respect to nonreciprocity in this paper is incorrect and conflicts with the fundamental Lorentz reciprocity theorem. It is further pointed out that a previous publication already introduced the device concept.