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(Journal Article) |
Mljekarstvo: 77-95 (2012)
Psychrotrophic bacteria and their negative effects on milk and dairy products quality
D. Samarzija
,
S. Zamberlin
,
T. Pogacic
ABSTRACT
We study two-body correlations for N identical bosons by use of the hyperspherical adiabatic-expansion method. We use the zero-range interaction and derive a transcendental equation determining the key ingredient of the hyperradial potential. The necessary renormalization is for both repulsive and attractive interactions achieved with an effective range expansion of the two-body phase shifts. Our solutions including correlations provide the properties of Bose-Einstein condensates exemplified by stability conditions as established by mean-field Gross-Pitaevskii calculations. The many-body Efimov states are unavoidable for large scattering lengths.