From squeezing to Gaussian entanglement via beamsplitters
文献类型：期刊论文
| 作者 | Fu,Shuangshuang1; Luo,Shunlong2,3 ; Zhang,Yue2,3
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| 刊名 | Journal of Physics B: Atomic, Molecular and Optical Physics
 |
| 出版日期 | 2020-03-18 |
| 卷号 | 53期号:8 |
| 关键词 | beamsplitters squeezing Gaussian entanglement interference nonclassicality |
| ISSN号 | 0953-4075 |
| DOI | 10.1088/1361-6455/ab746b |
| 英文摘要 | Abstract We investigate relations between squeezing of separable input states and entanglement of output states generated by a beamsplitter, both of which are valuable nonclassical resources for quantum information processing. Motivated by the seminal work of Asboth′ et al [2005 Phys. Rev. Lett. 94 173602], where a systematic study of nonclassicality (including squeezing) and beamsplitter-generated entanglement is conducted, we consider the situation when the two input states are all Gaussian and identify certain constraints on the squeezing parameters to generate entanglement. Contrary to naive expectation, large squeezing does not necessarily guarantee large entanglement. Depending on the phase relations between the input states and the beamsplitters, the conditions to generate entanglement vary, which may be regarded as a manifestation of interference. In two typical cases, it is the difference or sum of the squeezing amplitudes that plays a key role in generating entanglement. Analytic expressions of entanglement in terms of the difference or sum of the squeezing amplitudes are obtained, which are further shown to be monotonic in the relevant parameters. |
| 语种 | 英语 |
| WOS记录号 | IOP:0953-4075-53-8-AB746B |
| 出版者 | IOP Publishing |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/50310]  |
| 专题 | 应用数学研究所 |
| 作者单位 | 1.School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, People's Republic of China 2.Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, People's Republic of China 3.School of Mathematical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Fu,Shuangshuang,Luo,Shunlong,Zhang,Yue. From squeezing to Gaussian entanglement via beamsplitters[J]. Journal of Physics B: Atomic, Molecular and Optical Physics,2020,53(8). |
| APA | Fu,Shuangshuang,Luo,Shunlong,&Zhang,Yue.(2020).From squeezing to Gaussian entanglement via beamsplitters.Journal of Physics B: Atomic, Molecular and Optical Physics,53(8). |
| MLA | Fu,Shuangshuang,et al."From squeezing to Gaussian entanglement via beamsplitters".Journal of Physics B: Atomic, Molecular and Optical Physics 53.8(2020). |
入库方式： OAI收割
来源：数学与系统科学研究院
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