Phase transitions in Bose-Fermi-Hubbard model in the heavy fermion limit: Hard-core boson approach

• Published in: Condensed Matter Physics
• Date: 2015
• Main Authors: Stasyuk, I.V., Krasnov, V.O.
• Format: Article
• Language: English
• Published: Інститут фізики конденсованих систем НАН України 2015
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/155277
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Phase transitions in Bose-Fermi-Hubbard model in the heavy fermion limit: Hard-core boson approach / I.V. Stasyuk, V.O. Krasnov // Condensed Matter Physics. — 2015. — Т. 18, № 4. — С. 43702: 1–20. — Бібліогр.: 54 назв. — англ.

Phase transitions are investigated in the Bose-Fermi-Hubbard model in the mean field and hard-core boson approximations for the case of infinitely small fermion transfer and repulsive on-site boson-fermion interaction. The behavior of the Bose-Einstein condensate order parameter and grand canonical...