Fidelity of measurement-based quantum computation in a bosonic environment
文献类型：期刊论文
| 作者 | Wang, J ; Zhong, D ; Mu, LZ ; Fan, H |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2014 |
| 卷号 | 90期号:5 |
| ISSN号 | 1050-2947 |
| 通讯作者 | Wang, J (reprint author), Peking Univ, Beijing 100871, Peoples R China. |
| 中文摘要 | We investigate the fidelity of measurement-based quantum computation (MBQC) when it is coupled with a boson environment, by measuring the cluster-state fidelity and gate fidelity. Two schemes of cluster-state preparation are studied. In the controlled-Z (CZ) creation scheme, cluster states are prepared by entangling all qubits in vertical bar+> state with CZ gates at all neighboring sites. The fidelity shows an oscillation pattern over time. The influence of the environmental temperature is evaluated, and suggestions are given to enhance the performance of MBQCs realized in this way. In the Hamiltonian creation scheme, cluster states are made by cooling a system with cluster Hamiltonians, of which the ground states are cluster states. A fidelity sudden-drop phenomenon is discovered. When the coupling is below a threshold, MBQC systems are highly robust against the noise. Our main environmental model is one with a single collective bosonic mode. |
| 资助信息 | 973 program, NSFC [2010CB922904]; CAS; NFFTBS [J1030310, J1103205]; National Undergraduate Innovational Experimentation Program |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59459]  |
| 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 | Wang, J,Zhong, D,Mu, LZ,et al. Fidelity of measurement-based quantum computation in a bosonic environment[J]. PHYSICAL REVIEW A,2014,90(5). |
| APA | Wang, J,Zhong, D,Mu, LZ,&Fan, H.(2014).Fidelity of measurement-based quantum computation in a bosonic environment.PHYSICAL REVIEW A,90(5). |
| MLA | Wang, J,et al."Fidelity of measurement-based quantum computation in a bosonic environment".PHYSICAL REVIEW A 90.5(2014). |
入库方式： OAI收割
来源：物理研究所
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