Quantumness of Bosonic Field States
文献类型：期刊论文
| 作者 | Luo, Shunlong1,2 ; Zhang, Yue1,2
|
| 刊名 | INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
 |
| 出版日期 | 2019-12-03 |
| 页码 | 12 |
| 关键词 | Bosonic fields Nonclassical states Quantumness Wigner-Yanase skew information |
| ISSN号 | 0020-7748 |
| DOI | 10.1007/s10773-019-04313-2 |
| 英文摘要 | In bosonic fields, coherent states are widely regraded as the most classical (the least quantum) states for several operational and physical reasons. In this context, a natural question arises: How classical/quantum is a state? This fundamental issue has been pursued from various perspectives, and many significant measures of quantumness (nonclassicality) have been proposed, each with its own unique merit and usage. However, there is no universal measure of quantumness, and it is desirable to characterize quantumness from different angles. In this work, by exploiting the Wigner-Yanase skew information and the resolution of identity induced by coherent states of bosonic fields, we introduce a measure of quantumness which possesses several remarkable properties: Easy computation, information-theoretic meaning, physical relevance. We reveal its connection with Renyi 2-entropy of Husimi distributions of square root of quantum states, illustrate its significance in capturing quantumness through prototypical examples, and show that it is indeed a bona fide measure of quantumness. |
| 资助项目 | National Natural Science Foundation of China[11875317] ; National Center for Mathematics and Interdisciplinary Sciences, CAS[Y029152K51] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000501028600001 |
| 出版者 | SPRINGER/PLENUM PUBLISHERS |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/50344]  |
| 专题 | 应用数学研究所 |
| 通讯作者 | Luo, Shunlong |
| 作者单位 | 1.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Shunlong,Zhang, Yue. Quantumness of Bosonic Field States[J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS,2019:12. |
| APA | Luo, Shunlong,&Zhang, Yue.(2019).Quantumness of Bosonic Field States.INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS,12. |
| MLA | Luo, Shunlong,et al."Quantumness of Bosonic Field States".INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS (2019):12. |
入库方式： OAI收割
来源：数学与系统科学研究院
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