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arXiv 2104.04189hep-thgr-qc
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二维点阵全息系统的动力学性质

Dynamic Properties of Two-Dimensional Latticed Holographic System

Peng Liu, Jian-Pin Wu

摘要:

我们研究了动力学量的各向异性:直流(DC)电导率,蝴蝶速度,和电荷扩散。各向异性在决定双晶格系统的相结构中起着至关重要的作用。即使是很小的偏离各向同性可以导致不同的相结构,以及我们的全息系统的红外固定点。特别是,对于各向异性的情况下,最重要的属性是,即使对于金属相,IR固定点也可以是非AdS $_2 \times \mathbb R^2$。与单格点系统一样,蝴蝶速度和电荷扩散也可以诊断二维各向异性格点系统的量子相变。

英文摘要:

We study the anisotropic properties of dynamical quantities: direct current (DC) conductivity, butterfly velocity, and charge diffusion. The anisotropy plays a crucial role in determining the phase structure of the two-lattice system. Even a small deviation from isotropy can lead to distinct phase structures, as well as the IR fixed points of our holographic systems. In particular, for anisotropic cases, the most important property is that the IR fixed point can be non-AdS$_2 \times \mathbb R^2$ even for metallic phases. As that of a one-lattice system, the butterfly velocity and the charge diffusion can also diagnose the quantum phase transition (QPT) in this two-dimensional anisotropic latticed system.

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。

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