25 citations · 26 across the 2 of their papers we have counts for
2 papers
cond-mat.other2008★ 25 cited
Condition for emergence of complex eigenvalues in the Bogoliubov-de Gennes equations
Y. Nakamura, M. Mine, M. Okumura +1
The condition for the appearance of dynamical instability of the Bose-condensed system, characterized by the emergence of complex eigenvalues in the Bogoliubov-de Gennes equations,…
cond-mat.other2007★ 1 cited
Quantum Field Theoretical Analysis on Unstable Behavior of Bose-Einstein Condensates in Optical Lattices
K. Kobayashi, M. Mine, M. Okumura +1
We study the dynamics of Bose-Einstein condensates flowing in optical lattices on the basis of quantum field theory. For such a system, a Bose-Einstein condensate shows a unstable…