Gaussian states as minimum uncertainty states
文献类型：期刊论文
| 作者 | Fu, Shuangshuang2; Luo, Shunlong1,3 ; Zhang, Yue1,3
|
| 刊名 | PHYSICS LETTERS A
 |
| 出版日期 | 2020-01-09 |
| 卷号 | 384期号:1页码:5 |
| 关键词 | Bosonic fields Gaussian states Uncertainty relation Minimum uncertainty states Wigner-Yanase skew information |
| ISSN号 | 0375-9601 |
| DOI | 10.1016/j.physleta.2019.126037 |
| 英文摘要 | In bosonic fields, Gaussian states, which consist of a rather wide family of states including coherent states, squeezed states, thermal states, etc., have many classical-like features, and are usually defined from the mathematical perspective in terms of characteristic functions. It is well known that some special Gaussian states, such as coherent states, are minimum uncertainty states for the conventional Heisenberg uncertainty relation involving canonical pair of position and momentum observables. A natural question arises as whether all Gaussian states can be characterized as minimum uncertainty states. In this work, we show that indeed Gaussian states coincide with minimum uncertainty states for an information-theoretic refinement of the conventional uncertainty relation established in Luo (2005) [40]. This characterization puts Gaussian states on a novel basis of physical significance. (C) 2019 Elsevier B.V. All rights reserved. |
| 资助项目 | Young Scientists Fund of the National Natural Science Foundation of China[11605006] ; Natural Science Foundation of China[11875317] ; National Center for Mathematics and Interdisciplinary Sciences, Chinese Academy of Sciences[Y029152K51] ; Key Laboratory of Random Complex Structures and Data Science, Chinese Academy of Sciences[2008DP173182] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000500050000005 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/50412]  |
| 专题 | 应用数学研究所 |
| 通讯作者 | Luo, Shunlong; Zhang, Yue |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China 2.Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu, Shuangshuang,Luo, Shunlong,Zhang, Yue. Gaussian states as minimum uncertainty states[J]. PHYSICS LETTERS A,2020,384(1):5. |
| APA | Fu, Shuangshuang,Luo, Shunlong,&Zhang, Yue.(2020).Gaussian states as minimum uncertainty states.PHYSICS LETTERS A,384(1),5. |
| MLA | Fu, Shuangshuang,et al."Gaussian states as minimum uncertainty states".PHYSICS LETTERS A 384.1(2020):5. |
入库方式： OAI收割
来源：数学与系统科学研究院
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