{"title":"穿越磁场的正电子的变形","authors":"B. O. Kerbikov, A. A. Simovonian","doi":"arxiv-2409.09496","DOIUrl":null,"url":null,"abstract":"Positronium spectrum and lifetimes are known with a high precision. The\nsituation is different for positronium moving across a magnetic field. The\ntotal momentum does not commute with the Hamiltonian and is replaced by\nconserved pseudomomentum. The internal dynamics is not separated from the\nmotion of the system as a whole. The Coulomb potential well is distorted and a\nwide outer potential well is created. We analytically determine the energy\nspectrum for a broad range of the magnetic field and pseudomomentum values. We\nlocate the region of these parameters for which the ground state resides in the\nouter well. The results may play a role in the supression of pulsars radio\nemission (polar cap problem).","PeriodicalId":501343,"journal":{"name":"arXiv - PHYS - High Energy Astrophysical Phenomena","volume":"40 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Metamorphosis of Positronium Moving Across a Magnetic Field\",\"authors\":\"B. O. Kerbikov, A. A. Simovonian\",\"doi\":\"arxiv-2409.09496\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Positronium spectrum and lifetimes are known with a high precision. The\\nsituation is different for positronium moving across a magnetic field. The\\ntotal momentum does not commute with the Hamiltonian and is replaced by\\nconserved pseudomomentum. The internal dynamics is not separated from the\\nmotion of the system as a whole. The Coulomb potential well is distorted and a\\nwide outer potential well is created. We analytically determine the energy\\nspectrum for a broad range of the magnetic field and pseudomomentum values. We\\nlocate the region of these parameters for which the ground state resides in the\\nouter well. The results may play a role in the supression of pulsars radio\\nemission (polar cap problem).\",\"PeriodicalId\":501343,\"journal\":{\"name\":\"arXiv - PHYS - High Energy Astrophysical Phenomena\",\"volume\":\"40 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - High Energy Astrophysical Phenomena\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.09496\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - High Energy Astrophysical Phenomena","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.09496","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Metamorphosis of Positronium Moving Across a Magnetic Field
Positronium spectrum and lifetimes are known with a high precision. The
situation is different for positronium moving across a magnetic field. The
total momentum does not commute with the Hamiltonian and is replaced by
conserved pseudomomentum. The internal dynamics is not separated from the
motion of the system as a whole. The Coulomb potential well is distorted and a
wide outer potential well is created. We analytically determine the energy
spectrum for a broad range of the magnetic field and pseudomomentum values. We
locate the region of these parameters for which the ground state resides in the
outer well. The results may play a role in the supression of pulsars radio
emission (polar cap problem).
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