Quantum-state transmission via a spin ladder as a robust data bus
文献类型：期刊论文
| 作者 | Sun, CP ; Song, Z; Chen, B; Shi, T; Li, Y; Li, Y , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
|
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2005 |
| 卷号 | 71期号:2页码:- |
| 关键词 | Coupled Heisenberg-chains Hubbard-model Computation Information Systems |
| ISSN号 | 1050-2947 |
| 英文摘要 | We explore the physical mechanism to coherently transfer the quantum information of spin by connecting two spins to an isotropic antiferromagnetic spin ladder system as data bus. Due to a large spin gap existing in such a perfect medium, the effective Hamiltonian of the two connected spins can be archived as that of Heisenberg type, which possesses a ground state with maximal entanglement. We show that the effective coupling strength is inversely proportional to the distance of the two spins and thus the quantum information can be transferred between the two spins separated by a longer distance, i.e., the characteristic time of quantum-state transferring linearly depends on the distance. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000227483900025 |
| 公开日期 | 2012-08-30 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13886]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Li, Y , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Sun, CP,Song, Z,Chen, B,et al. Quantum-state transmission via a spin ladder as a robust data bus[J]. PHYSICAL REVIEW A,2005,71(2):-. |
| APA | Sun, CP,Song, Z,Chen, B,Shi, T,Li, Y,&Li, Y , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China..(2005).Quantum-state transmission via a spin ladder as a robust data bus.PHYSICAL REVIEW A,71(2),-. |
| MLA | Sun, CP,et al."Quantum-state transmission via a spin ladder as a robust data bus".PHYSICAL REVIEW A 71.2(2005):-. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。