{"title":"Theory of Simultaneous Observation of Photoelectron and Emitted X-ray Photon in X-ray Emission Spectroscopy and Their Entanglement","authors":"Ryo B. Tanaka, Takayuki Uozumi","doi":"10.7566/jpsj.93.044401","DOIUrl":null,"url":null,"abstract":"We have theoretically investigated the character of entanglement between photoelectrons and emitted X-ray photons in XEPECS process which is a coincidence spectroscopy of photoelectrons and emitted X-ray photons. In the calculations, we used a three-electron <i>sp</i>-model consisting of an inner-shell 1<i>s</i> orbital and an outer-shell 2<i>p</i> orbital. We found that entanglement occurs between spin of photoelectrons and linear polarization of emitted X-ray photons, using the wavefunction of the whole system including the photon as well as the electron system. Furthermore, we calculated the degree of entanglement and found that it shows maximum at a particular angle of emitted X-ray photon.","PeriodicalId":17304,"journal":{"name":"Journal of the Physical Society of Japan","volume":"100 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Physical Society of Japan","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.7566/jpsj.93.044401","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
We have theoretically investigated the character of entanglement between photoelectrons and emitted X-ray photons in XEPECS process which is a coincidence spectroscopy of photoelectrons and emitted X-ray photons. In the calculations, we used a three-electron sp-model consisting of an inner-shell 1s orbital and an outer-shell 2p orbital. We found that entanglement occurs between spin of photoelectrons and linear polarization of emitted X-ray photons, using the wavefunction of the whole system including the photon as well as the electron system. Furthermore, we calculated the degree of entanglement and found that it shows maximum at a particular angle of emitted X-ray photon.
我们从理论上研究了 XEPECS 过程中光电子与发射的 X 射线光子之间的纠缠特性。在计算中，我们使用了由内壳 1s 轨道和外壳 2p 轨道组成的三电子 sp 模型。利用包括光子和电子系统在内的整个系统的波函数，我们发现光电子的自旋和发射的 X 射线光子的线偏振之间存在纠缠。此外，我们还计算了纠缠程度，发现在发射 X 射线光子的特定角度，纠缠程度最大。
期刊介绍：
The papers published in JPSJ should treat fundamental and novel problems of physics scientifically and logically, and contribute to the development in the understanding of physics. The concrete objects are listed below.
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JPSJ covers all the fields of physics including (but not restricted to)
Elementary particles and fields
Nuclear physics
Atomic and Molecular Physics
Fluid Dynamics
Plasma physics
Physics of Condensed Matter
Metal, Superconductor, Semiconductor, Magnetic Materials, Dielectric Materials
Physics of Nanoscale Materials
Optics and Quantum Electronics
Physics of Complex Systems
Mathematical Physics
Chemical physics
Biophysics
Geophysics
Astrophysics.
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