Knowledge Management System of Institute of Theoretical Physics, CAS
| Wang, YC; Guo, WA; Sandvik, AW; Wang, YC (reprint author), Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China. | |
| Anomalous Quantum Glass of Bosons in a Random Potential in Two Dimensions | |
| Source Publication | PHYSICAL REVIEW LETTERS
 |
| Language | 英语 |
| Abstract | We present a quantum Monte Carlo study of the "quantum glass" phase of the two-dimensional Bose-Hubbard model with random potentials at filling rho = 1. In the narrow region between the Mott and superfluid phases, the compressibility has the form kappa similar to exp(-b/T alpha) + c with a < 1 and c vanishing or very small. Thus, at T = 0 the system is either incompressible (a Mott glass) or nearly incompressible (a Mott-glass-like anomalous Bose glass). At stronger disorder, where a glass reappears from the superfluid, we find a conventional highly compressible Bose glass. On a path connecting these states, away from the superfluid at larger Hubbard repulsion, a change of the disorder strength by only 10% changes the low-temperature compressibility by more than 4 orders of magnitude, lending support to two types of glass states separated by a phase transition or a sharp crossover. |
| 2015 | |
| Volume | 114Issue:10Pages:105303 |
| Subject Area | Physics |
| DOI | http://dx.doi.org/10.1103/PhysRevLett.114.105303 |
| Indexed By | SCI |
| Funding Organization | NSFC [11175018] ; NSFC [11175018] ; NSFC [11175018] ; NSFC [11175018] ; NSF [DMR-1104708, DMR-1410126] ; NSF [DMR-1104708, DMR-1410126] ; NSF [DMR-1104708, DMR-1410126] ; NSF [DMR-1104708, DMR-1410126] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/21058 |
| Collection | 理论物理所科研产出_SCI论文 |
| Corresponding Author | Wang, YC (reprint author), Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China. |
| Recommended Citation GB/T 7714 | Wang, YC,Guo, WA,Sandvik, AW,et al. Anomalous Quantum Glass of Bosons in a Random Potential in Two Dimensions[J]. PHYSICAL REVIEW LETTERS,2015,114(10):105303. |
| APA | Wang, YC,Guo, WA,Sandvik, AW,&Wang, YC .(2015).Anomalous Quantum Glass of Bosons in a Random Potential in Two Dimensions.PHYSICAL REVIEW LETTERS,114(10),105303. |
| MLA | Wang, YC,et al."Anomalous Quantum Glass of Bosons in a Random Potential in Two Dimensions".PHYSICAL REVIEW LETTERS 114.10(2015):105303. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Anomalous Quantum Gl（335KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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