KMS Of Academy of mathematics and systems sciences, CAS
Quantifying non-Gaussianity of bosonic fields via an uncertainty relation | |
Fu, Shuangshuang1; Luo, Shunlong2,3; Zhang, Yue2,3 | |
2020-01-30 | |
发表期刊 | PHYSICAL REVIEW A |
ISSN | 2469-9926 |
卷号 | 101期号:1页码:8 |
摘要 | While Gaussian states and associated Gaussian operations are basic ingredients and convenient objects for continuous-variable quantum information, it is also realized that non-Gaussianity is an important resource for quantum information processing. The characterization and quantification of non-Gaussianity have been widely studied in the past decade, with several significant measures for non-Gaussianity introduced. In this work, by exploiting an information-theoretic refinement of the conventional Heisenberg uncertainty relation and a physical characterization of Gaussian states as minimum uncertainty states, we introduce an easily computable measure for non-Gaussianity of bosonic field states in terms of the Wigner-Yanase skew information. Fundamental properties, as well as intuitive meaning, of this measure are unveiled. The concept is illustrated by prototypical non-Gaussian states, and compared with various existent measures for non-Gaussianity. Its merit and physical significance are elucidated. |
DOI | 10.1103/PhysRevA.101.012125 |
收录类别 | SCI |
语种 | 英语 |
资助项目 | Young Scientists Fund of the National Natural Science Foundation of China[11605006] ; Natural Science Foundation of China[11875317] |
WOS研究方向 | Optics ; Physics |
WOS类目 | Optics ; Physics, Atomic, Molecular & Chemical |
WOS记录号 | WOS:000510143800001 |
出版者 | AMER PHYSICAL SOC |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.amss.ac.cn/handle/2S8OKBNM/50772 |
专题 | 应用数学研究所 |
通讯作者 | Zhang, Yue |
作者单位 | 1.Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Fu, Shuangshuang,Luo, Shunlong,Zhang, Yue. Quantifying non-Gaussianity of bosonic fields via an uncertainty relation[J]. PHYSICAL REVIEW A,2020,101(1):8. |
APA | Fu, Shuangshuang,Luo, Shunlong,&Zhang, Yue.(2020).Quantifying non-Gaussianity of bosonic fields via an uncertainty relation.PHYSICAL REVIEW A,101(1),8. |
MLA | Fu, Shuangshuang,et al."Quantifying non-Gaussianity of bosonic fields via an uncertainty relation".PHYSICAL REVIEW A 101.1(2020):8. |
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