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arXiv · 2201.07900

About conditions of spatial collapse in an infinite system of Bose particles

B. E. Grinyuk·K. A. Bugaev
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Abstract

Using the variational principle, we show that the condition of spatial collapse in a Bose gas is not determined by the value of the scattering length of the interaction potential between particles contrary to the result following from the Gross--Pitaevskii equation, where the collapse should take place at a negative scattering length.

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B. E. Grinyuk, K. A. Bugaev. 2022-01-19. About conditions of spatial collapse in an infinite system of Bose particles. https://doi.org/10.15407/ujpe66.12.1024

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