{"title":"一种新型超流体/sup /He声透镜","authors":"G. L. Bullock, B. Shivaram","doi":"10.1109/ULTSYM.1988.49549","DOIUrl":null,"url":null,"abstract":"The authors propose a novel scheme to achieve focusing of sound waves in superfluid /sup 3/He. This scheme exploits the magnetic field dependence of the superfluid phase diagram and the difference in the sound propagation characteristics of the A- and B-phases. Central to the scheme is the dispersion caused by the sound wave's strong interaction with order-parameter collective modes that exist in the B-phase. Details of a magnet that will be used to achieve such a lens are presented.<<ETX>>","PeriodicalId":263198,"journal":{"name":"IEEE 1988 Ultrasonics Symposium Proceedings.","volume":"96 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A novel acoustic lens in superfluid /sup 3/He\",\"authors\":\"G. L. Bullock, B. Shivaram\",\"doi\":\"10.1109/ULTSYM.1988.49549\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The authors propose a novel scheme to achieve focusing of sound waves in superfluid /sup 3/He. This scheme exploits the magnetic field dependence of the superfluid phase diagram and the difference in the sound propagation characteristics of the A- and B-phases. Central to the scheme is the dispersion caused by the sound wave's strong interaction with order-parameter collective modes that exist in the B-phase. Details of a magnet that will be used to achieve such a lens are presented.<<ETX>>\",\"PeriodicalId\":263198,\"journal\":{\"name\":\"IEEE 1988 Ultrasonics Symposium Proceedings.\",\"volume\":\"96 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-10-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE 1988 Ultrasonics Symposium Proceedings.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ULTSYM.1988.49549\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 1988 Ultrasonics Symposium Proceedings.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ULTSYM.1988.49549","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The authors propose a novel scheme to achieve focusing of sound waves in superfluid /sup 3/He. This scheme exploits the magnetic field dependence of the superfluid phase diagram and the difference in the sound propagation characteristics of the A- and B-phases. Central to the scheme is the dispersion caused by the sound wave's strong interaction with order-parameter collective modes that exist in the B-phase. Details of a magnet that will be used to achieve such a lens are presented.<>
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