Lipkin-Nogami method at finite temperature in the static-path approximation

Lipkin-Nogami method at finite temperature in the static-path approximation

An approximate particle number projection at finite temperature using the Lipkin-Nogami method in the context of the static-path approximation is proposed. The numerical evaluation, performed in a simple degenerate 2[Omega]-level model, shows that the present approach can improve the standard unproj...

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Veröffentlicht in:Physical review. C, Nuclear physics Nuclear physics, 1993-02, Vol.47 (2), p.606-611
Hauptverfasser: Dang, ND, Ring, P, Rossignoli, R
Format: Artikel
Sprache:eng
Schlagworte:
FUNCTIONS
MATHEMATICAL MODELS
MATHEMATICS 663120 > Nuclear Structure Models & Methods-- (1992-)
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR TEMPERATURE
NUMERICAL ANALYSIS
PARTITION FUNCTIONS
RANDOM PHASE APPROXIMATION
STATISTICAL MODELS
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Zusammenfassung:An approximate particle number projection at finite temperature using the Lipkin-Nogami method in the context of the static-path approximation is proposed. The numerical evaluation, performed in a simple degenerate 2[Omega]-level model, shows that the present approach can improve the standard unprojected static-path approximation and is superior to the usual prescription based on classical thermodynamics.
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.47.606