论文标题
筛选或增强伪造的机制，整个两波段的bardeen-cooper-schrieffer到Bose-Einstein冷凝水交叉
Mechanism of screening or enhancing the pseudogap throughout the two-band Bardeen-Cooper-Schrieffer to Bose-Einstein condensate crossover
论文作者
论文摘要
我们证明了Bardeen-Cooper-Schrieffer-Schrieffer-Schrieffer-bose-Einstein-condementation（BCS-BEC）在两波段费米子系统中具有不同配对强度在深带和浅带中具有不同配对强度的两种偏移的上升。这种现象的引人注目的特征是对伪态状态的不寻常的多体筛选，以及成对交换耦合的重要性，它在两个频段中诱导了多个伪群形成。多带构型通过筛选效应在小对交换耦合处抑制了配对波动和伪造的浅带中的伪模型，并可能与铁基超导体中的伪甘油现象学连接。另一方面，多个伪ap机制伴随着二进制预制的库珀对的出现，这些库珀对源自带内和成对交换耦合之间的相互作用。
We demonstrate the rise-and-fall of multiple pseudogaps in the Bardeen-Cooper-Schrieffer-Bose-Einstein-condensation (BCS-BEC) crossover in two-band fermionic systems having different pairing strengths in the deep band and in the shallow band. The striking features of this phenomenon are an unusual many-body screening of pseudogap state and the importance of pair-exchange couplings, which induces multiple pseudogap formation in the two bands. The multi-band configuration suppresses pairing fluctuations and the pseudogap opening in the strongly-interacting shallow band at small pair-exchange couplings by screening effects, with possible connection to the pseudogap phenomenology in iron based superconductors. On the other hand, the multiple pseudogap mechanism accompanies with the emergence of binary preformed Cooper pairs originating from interplay between intra-band and pair-exchange couplings.
