We report studies on the influence of a time-dependent external driving fields of the photons on a quantum system described by Hubbard model with long-range interactions. Through the exact diagonalization method to calculate the superconducting pair correlation functions, we show that a weak repulsive long-range Coulomb interaction can help enhance superconducting pair correlation function in some parameter space, which may appear in cuprates, while the number of doublons is increased by the attractive long-range interaction. Out of the parameter space, long-range interaction can be harmful to η -pairing and on-site pairing of electrons. Our results may help people find and design new materials with significant enhancement of transient superconductivity induced by light pulse irradiations.

中文翻译：

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远程相互作用在光子激发电子对中的作用

我们报告了光子随时间变化的外部驱动场对由哈伯德模型描述的具有长距离相互作用的量子系统的影响的研究。通过精确的对角化方法计算超导对相关函数，我们表明，弱斥力的远程库仑相互作用可以帮助增强某些参数空间中的超导对相关函数，这些参数空间可能出现在铜价中，而双链的数量则增加有吸引力的远程交互。在参数空间之外，长距离相互作用可能对电子的η配对和现场配对有害。我们的结果可能会帮助人们发现和设计新材料，从而显着增强光脉冲辐照引起的瞬态超导性。