Scaling laws for the photoionization cross section of two-electron atoms
DC Field | Value | Language |
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dc.contributor.author | Byun, Chang Woo | - |
dc.contributor.author | Choi, Nark Nyul | - |
dc.contributor.author | Lee, Min-Ho | - |
dc.contributor.author | Tanner, Gregor | - |
dc.date.available | 2020-04-24T14:25:23Z | - |
dc.date.created | 2020-03-31 | - |
dc.date.issued | 2007-03-16 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/3268 | - |
dc.description.abstract | The cross sections for single-electron photoionization in two-electron atoms show fluctuations which decrease in amplitude when approaching the double-ionization threshold. Based on semiclassical closed orbit theory, we show that the algebraic decay of the fluctuations can be characterized in terms of a threshold law sigma proportional to vertical bar E vertical bar(mu) as E -> 0(-) with exponent mu obtained as a combination of stability exponents of the triple-collision singularity. It differs from Wannier's exponent dominating double-ionization processes. The details of the fluctuations are linked to a set of infinitely unstable classical orbits starting and ending in the nonregularizable triple collision. The findings are compared with quantum calculations for a model system, namely, collinear helium. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.subject | NONHYDROGENIC RYDBERG ATOMS | - |
dc.subject | CLOSED CLASSICAL ORBITS | - |
dc.subject | MAGNETIC-FIELD | - |
dc.subject | TRIPLE COLLISION | - |
dc.subject | QUANTUM SPECTRA | - |
dc.subject | NEAR-THRESHOLD | - |
dc.subject | SPECTROSCOPY | - |
dc.subject | IONIZATION | - |
dc.subject | HELIUM | - |
dc.subject | QUANTIZATION | - |
dc.title | Scaling laws for the photoionization cross section of two-electron atoms | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Nark Nyul | - |
dc.identifier.doi | 10.1103/PhysRevLett.98.113001 | - |
dc.identifier.scopusid | 2-s2.0-33947261021 | - |
dc.identifier.wosid | 000244959300022 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW LETTERS, v.98, no.11 | - |
dc.citation.title | PHYSICAL REVIEW LETTERS | - |
dc.citation.volume | 98 | - |
dc.citation.number | 11 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | NONHYDROGENIC RYDBERG ATOMS | - |
dc.subject.keywordPlus | CLOSED CLASSICAL ORBITS | - |
dc.subject.keywordPlus | MAGNETIC-FIELD | - |
dc.subject.keywordPlus | TRIPLE COLLISION | - |
dc.subject.keywordPlus | QUANTUM SPECTRA | - |
dc.subject.keywordPlus | NEAR-THRESHOLD | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | IONIZATION | - |
dc.subject.keywordPlus | HELIUM | - |
dc.subject.keywordPlus | QUANTIZATION | - |
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