Particle-number conservation in static-path approximation for thermal superfluid systems
نویسندگان
چکیده
منابع مشابه
Beyond the perturbed static path approximation (PSPA)
Based on the path integral approach the partition function of a many body system with separable two body interaction is calculated in the sense of a semiclassical approximation. The commonly used Gaussian type of approximation, known as the perturbed static path approximation (PSPA), breaks down near a crossover temperature due to instabilities of the classical mean field solution. It is shown ...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2007
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.76.064306