Quantum criticality from Fisher information
文献类型：期刊论文
| 作者 | Song, Hongting1; Luo, Shunlong2 ; Fu, Shuangshuang3
|
| 刊名 | QUANTUM INFORMATION PROCESSING
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 16期号:4页码:14 |
| 关键词 | Quantum criticality Quantum phase transition Quantum Fisher information Quantum metrology |
| ISSN号 | 1570-0755 |
| DOI | 10.1007/s11128-017-1543-9 |
| 英文摘要 | Quantum phase transition is primarily characterized by a qualitative sudden change in the ground state of a quantum system when an external or internal parameter of the Hamiltonian is continuously varied. Investigating quantum criticality using information- theoretic methods has generated fruitful results. Quantum correlations and fidelity have been exploited to characterize the quantum critical phenomena. In this work, we employ quantum Fisher information to study quantum criticality. The singular or extremal point of the quantum Fisher information is adopted as the estimated thermal critical point. By a significant model constructed in Quan et al. (Phys Rev Lett 96: 140604, 2006), the effectiveness of this method is illustrated explicitly. |
| 资助项目 | NASA Advanced Exploration Systems program and NASA Ames Research Center ; AFRL Information Directorate[F4HBKC4162G001] ; Office of the Director of National Intelligence (ODNI) ; Intelligence Advanced Research Projects Activity (IARPA)[IAA 145483] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000396813700005 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/25158]  |
| 专题 | 应用数学研究所 |
| 通讯作者 | Fu, Shuangshuang |
| 作者单位 | 1.China Acad Space Technol, Qian Xuesen Lab Space Technol, Beijing 100094, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China 3.Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Hongting,Luo, Shunlong,Fu, Shuangshuang. Quantum criticality from Fisher information[J]. QUANTUM INFORMATION PROCESSING,2017,16(4):14. |
| APA | Song, Hongting,Luo, Shunlong,&Fu, Shuangshuang.(2017).Quantum criticality from Fisher information.QUANTUM INFORMATION PROCESSING,16(4),14. |
| MLA | Song, Hongting,et al."Quantum criticality from Fisher information".QUANTUM INFORMATION PROCESSING 16.4(2017):14. |
入库方式： OAI收割
来源：数学与系统科学研究院
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