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An, Yu-Sen; Ji, Teng1; Li, Li1,2
Magnetotransport and complexity of holographic metal-insulator transitions
AbstractWe 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.
Cooperation Status国内
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
Indexed BySCIE
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Document Type期刊论文
Affiliation1.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
Recommended Citation
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.
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