{"title":"一些计算方面的过于尖锐的边缘","authors":"H. Wallén, J. Kataja","doi":"10.1109/CEM.2011.6047333","DOIUrl":null,"url":null,"abstract":"Ideally sharp edges can be computationally somewhat difficult, but the model is theoretically reasonable except for certain ranges of negative material parameters. In the quasistatic limit, negative permittivity wedges appear to support unphysical edge modes with infinite energy, and this theoretical anomaly show up as nonsensical numerical results in both static and dynamic simulations.","PeriodicalId":169588,"journal":{"name":"CEM'11 Computational Electromagnetics International Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Some computational aspects of too sharp edges\",\"authors\":\"H. Wallén, J. Kataja\",\"doi\":\"10.1109/CEM.2011.6047333\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ideally sharp edges can be computationally somewhat difficult, but the model is theoretically reasonable except for certain ranges of negative material parameters. In the quasistatic limit, negative permittivity wedges appear to support unphysical edge modes with infinite energy, and this theoretical anomaly show up as nonsensical numerical results in both static and dynamic simulations.\",\"PeriodicalId\":169588,\"journal\":{\"name\":\"CEM'11 Computational Electromagnetics International Workshop\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-10-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"CEM'11 Computational Electromagnetics International Workshop\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CEM.2011.6047333\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"CEM'11 Computational Electromagnetics International Workshop","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CEM.2011.6047333","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Ideally sharp edges can be computationally somewhat difficult, but the model is theoretically reasonable except for certain ranges of negative material parameters. In the quasistatic limit, negative permittivity wedges appear to support unphysical edge modes with infinite energy, and this theoretical anomaly show up as nonsensical numerical results in both static and dynamic simulations.