期刊
PHYSICAL REVIEW LETTERS
卷 107, 期 18, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.185301
关键词
-
资金
- National Science Foundation [PHY-1005543]
- Army Research Office
- DARPA
- Direct For Mathematical & Physical Scien
- Division Of Physics [1005543] Funding Source: National Science Foundation
We establish the full ground state phase diagram of the disordered Bose-Hubbard model in two dimensions at a unity filling factor via quantum Monte Carlo simulations. Similarly to the three-dimensional case we observe extended superfluid regions persisting up to extremely large values of disorder and interaction strength which, however, have small superfluid fractions and thus low transition temperatures. In the vicinity of the superfluid-insulator transition of the pure system, we observe an unexpectedly weak-almost not resolvable-sensitivity of the critical interaction to the strength of ( weak) disorder.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据