- th / 9 71 00 02 v 1 1 O ct 1 99 7 NUCLEAR MANY - BODY PROBLEM AT FINITE TEMPERATURE : A TFD APPROACH
نویسندگان
چکیده
Based on the formalism of thermo-field dynamics a new approach for studying collective excitations in hot finite Fermi systems is presented. Two approximations going beyond the thermal RPA namely renormalized thermal RPA and thermal second RPA are formulated.
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