التفاصيل البيبلوغرافية
| العنوان: |
Calculating Opacity in Hot, Dense Matter Using Second-Order Electron-Photon and Two-Photon Transitions to Approximate Line Broadening. |
| المؤلفون: |
Baggott RA; Plasma Physics Group, Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom., Rose SJ; Plasma Physics Group, Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom., Mangles SPD; Plasma Physics Group, Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom. |
| المصدر: |
Physical review letters [Phys Rev Lett] 2020 Oct 02; Vol. 125 (14), pp. 145002. |
| نوع المنشور: |
Journal Article |
| اللغة: |
English |
| بيانات الدورية: |
Publisher: American Physical Society Country of Publication: United States NLM ID: 0401141 Publication Model: Print Cited Medium: Internet ISSN: 1079-7114 (Electronic) Linking ISSN: 00319007 NLM ISO Abbreviation: Phys Rev Lett Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: |
Original Publication: New York : American Physical Society |
| مستخلص: |
Calculations of the opacity of hot, dense matter require models for plasma line broadening. However, the most general theories are too complex to calculate directly and some approximation is inevitably required. The most widely used approaches focus on the line center, where a Lorentzian shape is obtained. Here, we demonstrate that in the opposite limit, far from the line center, the opacity can be expressed in terms of second-order transitions, such as electron-photon and two-photon processes. We suggest that this insight could form the basis for a new approach to improve calculations of opacity in hot, dense matter. Preliminary calculations suggest that this approach could yield increased opacity away from absorption lines. |
| تواريخ الأحداث: |
Date Created: 20201016 Latest Revision: 20201019 |
| رمز التحديث: |
20240628 |
| DOI: |
10.1103/PhysRevLett.125.145002 |
| PMID: |
33064505 |
| قاعدة البيانات: |
MEDLINE |
