Distinguishing quantum features in classical propagation
文献类型：期刊论文
| 作者 | Titimbo, K.; Lando, G. M.; de Almeida, A. M. Ozorio |
| 刊名 | PHYSICA SCRIPTA
 |
| 出版日期 | 2021 |
| 卷号 | 96期号:1页码:15219 |
| 关键词 | PHASE-SPACE |
| ISSN号 | 0031-8949 |
| DOI | 10.1088/1402-4896/abcbc9 |
| 英文摘要 | The strictly classical propagation of an initial Wigner function, referred to as TWA or LSC-IVR, is considered to provide approximate averages, despite not being a true Wigner function: it does not represent a positive operator. We here show that its symplectic Fourier transform, the truncated chord approximation (TCA), coincides with the full semiclassical approximation to the evolved quantum characteristic function (or chord function) in a narrow neighbourhood of the origin of the dual chord phase space. Surprisingly, this small region accounts for purely quantum features, such as blind spots and local wave function correlations, as well as the expectation of observables with a close classical correspondence. Direct numerical comparison of the TCA with exact quantum results verifies the semiclassical predictions for an initial coherent state evolving under the Kerr Hamiltonian. The resulting clear criterion for any further features, which may be estimated by classical propagation, is that, within the chord representation, they are concentrated near the origin. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27307]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.[Titimbo, K. 2.Lando, G. M. 3.Ctr Brasileiro Pesquisas Fis, Rua Xavier Sigaud 150, BR-22290180 Rio De Janeiro, RJ, Brazil 4.[Titimbo, K.] Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.[Lando, G. M.] Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany |
| 推荐引用方式 GB/T 7714 | Titimbo, K.,Lando, G. M.,de Almeida, A. M. Ozorio. Distinguishing quantum features in classical propagation[J]. PHYSICA SCRIPTA,2021,96(1):15219. |
| APA | Titimbo, K.,Lando, G. M.,&de Almeida, A. M. Ozorio.(2021).Distinguishing quantum features in classical propagation.PHYSICA SCRIPTA,96(1),15219. |
| MLA | Titimbo, K.,et al."Distinguishing quantum features in classical propagation".PHYSICA SCRIPTA 96.1(2021):15219. |
入库方式： OAI收割
来源：理论物理研究所
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