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arXiv 1002.2947hep-thcond-mat.str-el
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Condensed matter和AdS/CFT

Condensed matter and AdS/CFT

Subir Sachdev

摘要:

我回顾了凝聚态物理中的两类强耦合问题,并描述了应用AdS/CFT对应所获得的见解。第一类涉及非零温度动力学和相对论场论描述的量子临界点附近的运输。我描述了相对论结构如何出现在物理感兴趣的模型,目前的结果,他们的量子临界交叉功能和磁热电流体力学。第二类涉及在布里渊区的孤立点或沿线(即费米面)的无隙电子激发的存在下,二维系统的对称性破缺跃迁。我描述的标度结构的最近的理论的伊辛-伊辛过渡金属,并讨论其可能的连接到费米表面的理论从简单的AdS的。

英文摘要:

I review two classes of strong coupling problems in condensed matter physics, and describe insights gained by application of the AdS/CFT correspondence. The first class concerns non-zero temperature dynamics and transport in the vicinity of quantum critical points described by relativistic field theories. I describe how relativistic structures arise in models of physical interest, present results for their quantum critical crossover functions and magneto-thermoelectric hydrodynamics. The second class concerns symmetry breaking transitions of two-dimensional systems in the presence of gapless electronic excitations at isolated points or along lines (i.e. Fermi surfaces) in the Brillouin zone. I describe the scaling structure of a recent theory of the Ising-nematic transition in metals, and discuss its possible connection to theories of Fermi surfaces obtained from simple AdS duals.

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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