Test of finite temperature random-phase approximation on a Lipkin model
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics, Tohoku University, Sendai 980-8578 (Japan)
- Innovative Nuclear Science Research Group, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
We investigate the applicability of the finite temperature random phase approximation (RPA) using a solvable Lipkin model. We show that the finite temperature RPA reproduces reasonably well the temperature dependence of total strength, both for the positive energy (i.e., the excitation) and the negative energy (i.e., the de-excitation) parts. This is the case even at very low temperatures, which may be relevant to astrophysical purposes.
- OSTI ID:
- 21293999
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 80, Issue 4; Other Information: DOI: 10.1103/PhysRevC.80.047301; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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