Self-consistent approach for Bose-condensed atoms in optical lattices

• Published in: Condensed Matter Physics
• Date: 2013
• Main Author: Yukalov, V.I.
• Format: Article
• Language: English
• Published: Інститут фізики конденсованих систем НАН України 2013
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/120802
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Self-consistent approach for Bose-condensed atoms in optical lattices / V.I. Yukalov // Condensed Matter Physics. — 2013. — Т. 16, № 2. — С. 23002:1-16. — Бібліогр.: 50 назв. — англ.

Bose atoms in optical lattices are considered at low temperatures and weak interactions, when Bose-Einstein condensate is formed. A self-consistent approach, based on the use of a representative statistical ensemble, is employed, guaranteeing a gapless spectrum of collective excitations and the vali...