Green's function derivation of the thermal random phase approximation equations in open shell systems
The thermal Green's functions are used to derive the thermal random phase approximation (TRPA) in open shell systems. The TRPA in the Sn isotopes is studied for a separable quadrupole interaction as a function of the temperature. The matrix elements of quadrupole particle-hole and two-particle...
| Autores principales: | , , |
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| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_05562813_v42_n5_p2093_Dussel |
| Aporte de: |
| Sumario: | The thermal Green's functions are used to derive the thermal random phase approximation (TRPA) in open shell systems. The TRPA in the Sn isotopes is studied for a separable quadrupole interaction as a function of the temperature. The matrix elements of quadrupole particle-hole and two-particle operators as well as their energy-weighted sum rules are evaluated. The most noticeable features introduced by the temperature dependence are the big changes that happen when the superconductivity disappears. © 1990 The American Physical Society. |
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