Quantum Levy Flights and Multifractality of Dipolar Excitations in a Random System
文献类型：期刊论文
| 作者 | Deng, X.1; Altshuler, B. L.2,3; Shlyapnikov, G. V.3,4,5,6,7; Santos, L.1 |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2016-07-06 |
| 卷号 | 117期号:2 |
| 英文摘要 | We consider dipolar excitations propagating via dipole-induced exchange among immobile molecules randomly spaced in a lattice. The character of the propagation is determined by long-range hops (Levy flights). We analyze the eigenenergy spectra and the multifractal structure of the wave functions. In 1D and 2D, all states are localized, although in 2D the localization length can be extremely large leading to an effective localization-delocalization crossover in realistic systems. In 3D, all eigenstates are extended but not always ergodic, and we identify the energy intervals of ergodic and nonergodic states. The reduction of the lattice filling induces an ergodic to nonergodic transition, and the excitations are mostly nonergodic at low filling. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | METAL-INSULATOR-TRANSITION ; POLAR-MOLECULES ; ANDERSON LOCALIZATION ; DISORDERED-SYSTEMS ; STATISTICAL PROPERTIES ; LATTICE ; DELOCALIZATION ; PROPAGATION ; DIFFUSION ; DYNAMICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000379728400001 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/9450]  |
| 专题 | 武汉物理与数学研究所_理论与交叉研究部 |
| 作者单位 | 1.Leibniz Univ Hannover, Inst Theoret Phys, Appelstr 2, D-30167 Hannover, Germany 2.Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA 3.Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA 4.Univ Paris 11, Univ Paris Saclay, CNRS, LPTMS, F-91405 Orsay, France 5.Univ Amsterdam, Van Der Waals Zeeman Inst, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands 6.Russian Quantum Ctr, Skolkovo 143025, Moscow Region, Russia 7.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, X.,Altshuler, B. L.,Shlyapnikov, G. V.,et al. Quantum Levy Flights and Multifractality of Dipolar Excitations in a Random System[J]. PHYSICAL REVIEW LETTERS,2016,117(2). |
| APA | Deng, X.,Altshuler, B. L.,Shlyapnikov, G. V.,&Santos, L..(2016).Quantum Levy Flights and Multifractality of Dipolar Excitations in a Random System.PHYSICAL REVIEW LETTERS,117(2). |
| MLA | Deng, X.,et al."Quantum Levy Flights and Multifractality of Dipolar Excitations in a Random System".PHYSICAL REVIEW LETTERS 117.2(2016). |
入库方式： OAI收割
来源：武汉物理与数学研究所
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