Magnetotransport and complexity of holographic metal-insulator transitions

doi:10.1007/JHEP10(2020)023

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	Magnetotransport and complexity of holographic metal-insulator transitions
	An, Yu-Sen ; Ji, Teng 1; Li, Li 1,2
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2020
期号	10 页码:23
关键词	B=0
ISSN号	1029-8479
DOI	10.1007/JHEP10(2020)023
英文摘要	We study the magnetotransport in a minimal holographic setup of a metal- insulator transition in two spatial dimensions. Some generic features are obtained without referring to the non-linear details of the holographic theory. The temperature dependence of resistivity is found to be well scaled with a single parameter T-0, which approaches zero at some critical charge density rho(c), and increases as a power law T-0 similar to \|rho - rho(c)\|(1/2) both in metallic (rho > rho(c)) and insulating (rho < rho(c)) regions in the vicinity of the transition. Similar features also happen by changing the disorder strength as well as magnetic field. By requiring a positive definite longitudinal conductivity in the presence of an applied magnetic field restricts the allowed parameter space of theory parameters. We explicitly check the consistency of parameter range for two representative models, and compute the optical conductivities for both metallic and insulating phases, from which a disorder- induced transfer of spectral weight from low to high energies is manifest. We construct the phase diagram in terms of temperature and disorder strength. The complexity during the transition is studied and is found to be not a good probe to the metal-insulator transition.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27389]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China
推荐引用方式 GB/T 7714	An, Yu-Sen,Ji, Teng,Li, Li. Magnetotransport and complexity of holographic metal-insulator transitions[J]. JOURNAL OF HIGH ENERGY PHYSICS,2020(10):23.
APA	An, Yu-Sen,Ji, Teng,&Li, Li.(2020).Magnetotransport and complexity of holographic metal-insulator transitions.JOURNAL OF HIGH ENERGY PHYSICS(10),23.
MLA	An, Yu-Sen,et al."Magnetotransport and complexity of holographic metal-insulator transitions".JOURNAL OF HIGH ENERGY PHYSICS .10(2020):23.