arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0807.1737hep-th
收藏

具有自发对称性破缺的量子临界点的引力对偶

The gravity dual to a quantum critical point with spontaneous symmetry breaking

Steven S. Gubser, Fabio D. Rocha

摘要:

考虑了具有负宇宙学常数的阿贝尔Higgs模型的零温解。通过适当的参数选择,几何包含两个反德西特空间的副本,一个描述紫外线的共形不变性,另一个描述红外线的共形不变性。在红外波段,信号的有效传播速度较小。格林函数和相关的输运系数在红外线中可能具有不寻常的幂律标度。我们提供了一个例子,在这个例子中,电导率的实部近似为Ω ^[3.5]。

英文摘要:

We consider zero temperature solutions to the Abelian Higgs model coupled to gravity with a negative cosmological constant. With appropriate choices of parameters, the geometry contains two copies of anti-de Sitter space, one describing conformal invariance in the ultraviolet, and one in the infrared. The effective speed of signal propagation is smaller in the infrared. Green's functions and associated transport coefficients can have unusual power law scaling in the infrared. We provide an example in which the real part of the conductivity scales approximately as omega^3.5 for small omega.

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。

↑