Abstract
The mechanism of condensation of a weakly nonideal Bose gas into a superfluid state (described in [1]) is analyzed by taking into account strong density fluctuations. The probability of occurrence of an optimal fluctuation leading to the formation of a superfluid phase is calculated. The relationship between the results of this study and the analysis presented in [1] is discussed.
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Original Russian Text © R.B. Saptsov, 2007, published in Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2007, Vol. 132, No. 3, pp. 642–646.