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arXiv 1608.03286hep-thcond-mat.str-el
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条纹全息物质中的电荷扩散与蝴蝶效应

Charge diffusion and the butterfly effect in striped holographic matter

Andrew Lucas, Julia Steinberg

摘要:

最近,有人提出,蝴蝶速度--量子信息传播的速度--可能为肮脏的非相干金属中的扩散常数提供一个基本的界限。解析计算了单空间方向上长波长“流体动力学”无序荷电中性全息物质中的电荷扩散常数和蝴蝶速度。在这个极限下,我们发现蝴蝶速度并没有为电荷扩散常数设定一个尖锐的下限。

英文摘要:

Recently, it has been proposed that the butterfly velocity - a speed at which quantum information propagates - may provide a fundamental bound on diffusion constants in dirty incoherent metals. We analytically compute the charge diffusion constant and the butterfly velocity in charge-neutral holographic matter with long wavelength "hydrodynamic" disorder in a single spatial direction. In this limit, we find that the butterfly velocity does not set a sharp lower bound for the charge diffusion constant.

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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