论文标题
绝缘体对金属过渡的轻波相干控制在强相关的材料中
Light-wave coherent control of the insulator-to-metal transition in a strongly correlated material
论文作者
论文摘要
使用强度量身定制的光场是实现量子材料中电子性质超快控制的理想工具。其中，莫特绝缘子是材料，其中强电子电子相互作用将材料驱动到绝缘阶段。当闪烁具有强激光脉冲的Mott绝缘子时，电场可能会诱导Doublon-Hole对的创建，从而触发绝缘体到金属相变。在这项工作中，我们利用了这种绝缘子到金属过渡的阈值特征，我们提出了一种泵探针方案，该方案由中印刷激光脉冲和一系列短脉冲和交替阶段的中边红外半段相隔的短脉冲。通过改变两种脉冲之间的时间延迟和短脉冲的内部载体包膜相，我们可以控制相变的控制，这将其指纹留在其高谐波谱中。
The use of intense tailored light fields is the perfect tool to achieve ultrafast control of electronic properties in quantum materials. Among them, Mott insulators are materials in which strong electron-electron interactions drive the material into an insulating phase. When shinning a Mott insulator with a strong laser pulse, the electric field may induce the creation of doublon-hole pairs, triggering an insulator-to-metal phase transition. In this work, we take advantage of the threshold character of this insulator-to-metal transition and we propose a pump-probe scheme that consists of a mid-infrared laser pulse and a train of short pulses separated by half-period of the mid-infrared with alternating phases. By varying the time-delay between the two pulses and the internal carrier envelope phase of the short pulses, we achieve control of the phase transition, which leaves its fingerprint at its high harmonic spectrum.
