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cond-mat.stat-mech2018★ 6 cited
Re-examining the quadratic approximation in theory of a weakly interacting Bose gas with condensate: the role of nonlocal interaction potentials
Mykyta Bulakhov, Alexander Peletminskii, Sergey Peletminskii +2
We derive and analyze the coupled equations of quadratic approximation of the Bogoliubov model for a weakly interacting Bose gas. The first equation determines the condensate densi…
cond-mat.stat-mech2009★ 19 cited
Green-function method in the theory of ultraslow electromagnetic waves in an ideal gas with Bose-Einstein condensates
Yurii Slyusarenko, Andrii Sotnikov
We propose a microscopic approach describing the interaction of an ideal gas of hydrogenlike atoms with a weak electromagnetic field. This approach is based on the Green-function f…