THE RPA-SPA APPROXIMATION TO LEVEL DENSITIES

被引：79

作者：

PUDDU, G

BORTIGNON, PF

BROGLIA, RA

机构：

[1] POLITECN MILAN,IST INGN NUCL,I-20133 MILAN,ITALY

[2] UNIV MILAN,DIPARTMENTO FIS,I-20133 MILAN,ITALY

[3] UNIV COPENHAGEN,NIELS BOHR INST,DK-2100 COPENHAGEN,DENMARK

[4] TEXAS A&M UNIV SYST,CTR THEORET PHYS,COLLEGE STN,TX 77843

来源：

ANNALS OF PHYSICS | 1991年 / 206卷 / 02期

关键词：

D O I：

10.1016/0003-4916(91)90006-T

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Functional integral techniques are applied to the problem of level densities for interacting Fermi systems. Thermal and small-amplitude quantal fluctuations are retained in the partition function. Validity and limitations of the approximation are explored on solvable models for which the mean-field approximation displays phase transitions. The exact results are reproduced to a high level of accuracy. © 1991.

引用

页码：409 / 439

页数：31

共 18 条

[1] LANDAU THEORY OF SHAPE TRANSITIONS IN HOT ROTATING NUCLEI [J].