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题名: Building a doped Mott system by holography
作者: Ling, Y;  Liu, P;  Niu, C;  Wu, JP
刊名: PHYSICAL REVIEW D
出版日期: 2015
卷号: 92, 期号:8, 页码:86003
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.92.086003
通讯作者: Ling, Y (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
文章类型: Article
英文摘要: We construct a holographic model in the framework of Q-lattices whose dual exhibits metal-insulator transitions. By introducing an interacting term between the Q-lattice and the electromagnetic field in bulk geometry, we find such kind of transition can be Mott-like. The evidences are presented as follows. (i) The transition from a metallic phase to an insulating phase occurs when the lattice constant becomes larger. (ii) A hard gap in the insulating phase can be manifestly observed in the optical conductivity. Nevertheless, in the zero temperature limit this model exhibits novel metallic behavior, featured by a gap as well as a zero-frequency mode with tiny spectral weight. It implies that our model is dual to a doped Mott system in one dimension where umklapp scattering is frozen at zero temperature. The similarity between this model and some organic linear chain conductors is briefly discussed.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: TRANSITION ;  INSULATOR ;  DIMENSIONS
收录类别: SCI
项目资助者: Natural Science Foundation of China [11275208, 11305018, 11178002] ;  Jiangxi young scientists (JingGang Star) program ;  555 talent project of Jiangxi Province ;  Program for Liaoning Excellent Talents in University [LJQ2014123] ;  Perimeter Institute for Theoretical Physics ;  Government of Canada through Industry Canada ;  Province of Ontario through the Ministry of Economic Development and Innovation
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20826
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Recommended Citation:
Ling, Y,Liu, P,Niu, C,et al. Building a doped Mott system by holography[J]. PHYSICAL REVIEW D,2015,92(8):86003.
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