Momentum dissipation and holographic transport without self-duality
Momentum dissipation and holographic transport without self-duality
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无自对偶性的动量耗散和全息输运
DOI：
10.1140/epjc/s10052-018-6100-x
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发表时间：
2016-09
影响因子：
4.4
通讯作者：
Guoyang Fu
中科院分区：
文献类型：
--
作者：
Jian-Pin Wu;Xiao-Mei Kuang;Guoyang Fu
研究了无自对偶全息模型中空间线性轴子场引入的动量耗散对外尔张量与麦克斯韦场耦合的响应。结果表明，当耦合参量为正时，由参量表征的动量耗散驱动一个低频峰的非相干金属态进入另一个低频谷的非相干金属相.而对于，观察到相反的情况。在我们的模型中的另一个有趣的特点是，对于一些可观测量，包括直流电导率，扩散常数和磁化率，存在一定的值，这些可观测量是独立的。最后，还研究了电磁（EM）对偶性，也有一个特定的值，对于该值，由边界理论中符号的变化所关联的粒子-涡旋对偶性比其他值更好。
We explore the response of the momentum dissipation introduced by spatial linear axionic fields in a holographic model without self-duality, which is broke by Weyl tensor coupling to Maxwell field. It is found that for the positive Weyl coupling parameter, the momentum dissipation, characterized by parameter, drives an incoherent metallic state with a peak at low frequency into another incoherent metallic phase with a dip. While for, an oppositive scenario is observed. Another interesting feature in our model is that for some observables including the DC conductivity, diffusion constant and susceptibility, there exists a certain value of, for which these observables are independent of. Finally, the electromagnetic (EM) duality is also studied and there is also a specific value of, for which the particle-vortex duality related by the change of the sign ofin the boundary theory holds better than for other values of.
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影响因子：
5.4
作者：
P. Kovtun;D. Son;A. Starinets
通讯作者：
P. Kovtun;D. Son;A. Starinets
DOI：
--
发表时间：
2013-01
期刊：
arXiv: High Energy Physics - Theory
影响因子：
--
作者：
David Vegh
通讯作者：
David Vegh
影响因子：
5
作者：
Ling, Yi;Liu, Peng;Wu, Jian-Pin
通讯作者：
Wu, Jian-Pin
影响因子：
4.4
作者：
Chi-Fang Chen;A. Lucas
通讯作者：
Chi-Fang Chen;A. Lucas
影响因子：
5.4
作者：
R. Myers;T. Sierens;W. Witczak-Krempa
通讯作者：
R. Myers;T. Sierens;W. Witczak-Krempa