推广的Holstein-哈伯德模型中的长程电荷序
Long-range charge order in the extended Holstein--Hubbard model
摘要：
本文研究了半填充状态下扩展的Holstein-哈伯德模型作为描述电子-电子和电子-声子耦合相互作用的模型。当电子-声子相互作用和最近邻电子-电子相互作用较强时，我们证明了在足够低的温度下，在三维或更多维空间中存在长程电荷序。因此，我们严格证明反铁磁和电荷订单之间的相位竞争。
英文摘要：
This study investigated the extended Holstein--Hubbard model at half-filling as a model for describing interplay of the electron-electron and electron-phonon couplings. When the electron-phonon and nearest-neighbor electron-electron interactions are strong, we prove the existence of long-range charge order at sufficiently low temperature in three or more dimensions. As a result, we rigorously justify the phase competition between the antiferromagnetic and charge orders.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
