About Conditions of Spatial Collapse in an Infinite System of Bose Particles

Authors

  • B.E. Grinyuk Bogolyubov Institute for Theoretical Physics, Nat. Acad. of Sci. of Ukraine
  • K.A. Bugaev Bogolyubov Institute for Theoretical Physics, Nat. Acad. of Sci. of Ukraine

DOI:

https://doi.org/10.15407/ujpe66.12.1024

Keywords:

Bose-system, spatial collapse

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.

References

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Published

2021-12-20

How to Cite

Grinyuk, B., & Bugaev, K. (2021). About Conditions of Spatial Collapse in an Infinite System of Bose Particles. Ukrainian Journal of Physics, 66(12), 1024. https://doi.org/10.15407/ujpe66.12.1024

Issue

Section

Fields and elementary particles

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