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Fundamental Journal of Modern Physics

ISSN: 2249-9768
Volume 1, Issue 1, 2011, Pages 1-132

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New transformation for a non-ideal Bose system
Author(s): V. N. Minasyan and V. N. Samoylov
Pages: 23-31
Received: January 12, 2011
 
Abstract
We present a new simple transformation for a dilute Bose gas with weak interactions between the atoms, used to describe the superfluid liquid helium. This transformation, together the Fröhlich unitary transformation, leads to the formation of Bogoliubov quasiparticles. In this respect, we find the equation for density atoms in the condensate which coincides with Bogoliubov’s famous equation.


Keywords and phrases

non-ideal Bose system, Fröhlich unitary transformation, Bogoliubov quasiparticles, Bogoliubov transformation.
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