Quantum Monte Carlo Study of Hard-Core Bosons on the Shastry-Sutherland Lattice
文献类型：期刊论文
| 作者 | Gan, JY |
| 刊名 | JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2011 |
| 卷号 | 80期号:3 |
| 关键词 | SUPERFLUID INSULATOR MODEL |
| ISSN号 | 0031-9015 |
| 通讯作者 | Gan, JY (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100190, Peoples R China. |
| 中文摘要 | We study the ground state properties of the extended hard-core Bose Hubbard model in a two-dimensional Shastry Sutherland lattice by quantum Monte Carlo simulations. The effects of the geometric frustration, described by the ratio t'/t between hopping integrals along the nearest-neighbor links and the diagonal links, are studied. We find that for small values of frustration amplitude t'/t, a checkerboard solid state emerges at rho = 1/2; for large values of frustration amplitude t'/t, a solid state emerges at rho = 1/2 with one boson per dimer (dimers on diagonal links); for intermediate values of frustration amplitude t'/t, besides the rho = 1/2 solid state, the rho = 1/3,2/3 solid states emerge. No stable supersolid state is observed in our calculations. At half filling, we find solid-superfluid-solid phase transition as the frustration amplitude t'/t is increased. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51700]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gan, JY. Quantum Monte Carlo Study of Hard-Core Bosons on the Shastry-Sutherland Lattice[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN,2011,80(3). |
| APA | Gan, JY.(2011).Quantum Monte Carlo Study of Hard-Core Bosons on the Shastry-Sutherland Lattice.JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN,80(3). |
| MLA | Gan, JY."Quantum Monte Carlo Study of Hard-Core Bosons on the Shastry-Sutherland Lattice".JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 80.3(2011). |
入库方式： OAI收割
来源：物理研究所
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