论文标题
两种频段哈伯德模型中的动态响应和竞争订单
Dynamical response and competing orders in two-band Hubbard model
论文作者
论文摘要
我们介绍了在几个相变的两种频段哈伯德模型中两粒子动态响应函数的动态平均研究研究。我们观察到，交流凝结物和自旋状态有序状态之间的过渡是连续的，狭窄的超卵形酶将两者分开。在布里鲁因区域的主角宣布了从激素冷凝物的过渡。在自旋状态有序的阶段内部有一个具有2x2周期性的磁有序状态，该状态在当时的正相时没有前体。
We present a dynamical mean-field study of two-particle dynamical response functions in two-band Hubbard model across several phase transitions. We observe that the transition between theexcitonic condensate and spin-state ordered state is continuous with a narrow strip of supersolidphase separating the two. Approaching transition from the excitonic condensate is announced bysoftening of the excitonic mode at theMpoint of the Brillouin zone. Inside the spin-state orderedphase there is a magnetically ordered state with 2x2 periodicity, which has no precursor in thenormal phase.
