The European Physical Journal D最新文献_第4页

Light scattering of an arbitrarily oriented cubic particle within the Wentzel–Kramers–Brillouin approach 文采尔-克拉默斯-布里渊方法中任意取向立方粒子的光散射

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2024-10-12 DOI: 10.1140/epjd/s10053-024-00919-2

E. M. Tari, S. Zahraoui, M. Ibnchaikh, N. Hachem

引用次数: 0

Breit interaction in dielectronic recombination of hydrogenlike xenon ions: storage-ring experiment and theory 类氢氙离子模电子重组中的布赖特相互作用：储环实验与理论

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2024-10-01 DOI: 10.1140/epjd/s10053-024-00914-7

Shu-Xing Wang, Carsten Brandau, Stephan Fritzsche, Sebastian Fuchs, Zoltán Harman, Christophor Kozhuharov, Alfred Müller, Markus Steck, Stefan Schippers

{"title":"Breit interaction in dielectronic recombination of hydrogenlike xenon ions: storage-ring experiment and theory","authors":"Shu-Xing Wang, Carsten Brandau, Stephan Fritzsche, Sebastian Fuchs, Zoltán Harman, Christophor Kozhuharov, Alfred Müller, Markus Steck, Stefan Schippers","doi":"10.1140/epjd/s10053-024-00914-7","DOIUrl":"10.1140/epjd/s10053-024-00914-7","url":null,"abstract":"Electron-ion collision spectroscopy of the KLL dielectronic recombination (DR) resonances of hydrogenlike xenon ions was performed at a heavy-ion storage ring with a resolving power that is competitive with x-ray spectroscopy of inner-shell transitions in highly charged ions. The (KL_{1/2}L_{1/2}), (KL_{1/2}L_{3/2}), and (KL_{3/2}L_{3/2}) resonance groups and even parts of their fine structure are individually resolved. The resonance strengths were measured on an absolute scale and compared with results from multi-configuration Dirac–Fock (MCDF) calculations. These are in excellent agreement with the experimental findings when QED effects on the resonance energies and the Breit interaction are considered. As already found for DR of hydrogenlike uranium (Bernhardt et al. in Phys Rev A 83:020701(R), 2011), this interaction is particularly strong for the (KL_{1/2}L_{1/2}) resonance group. For U(^{91+}), it increases the (KL_{1/2}L_{1/2}) DR resonance strength by 40%. For Xe(^{53+}), the increase is found to amount to 25%, confirming the prediction that the influence of the Breit interaction grows with increasing nuclear charge. A comprehensive appendix treats the derivation of experimental and theoretical merged-beams recombination rate coefficients for interacting beams of relativistic electrons and ions.","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":"78 10","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjd/s10053-024-00914-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142409305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gravitational force-induced changes in collisionless shock wave behavior in a charge-varying nonthermal dusty plasma 引力诱导的电荷变化非热尘埃等离子体中无碰撞冲击波行为的变化

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2024-09-30 DOI: 10.1140/epjd/s10053-024-00913-8

Ahmed Redha Benrekia, Rachid Fermous, Ziane Kchidi, Rabia Amour

{"title":"Gravitational force-induced changes in collisionless shock wave behavior in a charge-varying nonthermal dusty plasma","authors":"Ahmed Redha Benrekia, Rachid Fermous, Ziane Kchidi, Rabia Amour","doi":"10.1140/epjd/s10053-024-00913-8","DOIUrl":"10.1140/epjd/s10053-024-00913-8","url":null,"abstract":"The effects of gravitational force on the behavior of collisionless shock waves in a nonthermal dusty plasma with fluctuating charge have been examined. The distribution function describing a cold beam of dust grains under the influence of gravitational effects has been reanalyzed, resulting in the derivation of a new density expression. Numerical integration of the Poisson equation, coupled with the dust grain charge equation, reveals that the electrostatic potential associated with DA shock waves forms an asymmetric, oscillatory structure when gravitational effects are considered. Specifically, we have found that due to gravitational effects, the electrostatic potential inherent to the DA shock waves undergoes a jump and increases linearly and the amplitude of each oscillation decreases as the nonthermality of the electrons becomes more important. Furthermore, for medium-sized grains, the interplay between electrostatic potential and gravitational forces results in a shift of the multilayer structure toward higher potential values, along with an increased number of oscillations. This effect becomes even more pronounced for larger grains. The results of our investigation may contribute to a deeper understanding of shock structures in inhomogeneous media obtained in a controlled laboratory environment and may also have practical applications in interpreting similar phenomena in astrophysical contexts.\u0000","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":"78 9","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142415269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electron-impact ionization cross section of fusion-relevant diatomic molecules containing B 含 B 的聚变相关二原子分子的电子撞击电离截面

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2024-09-25 DOI: 10.1140/epjd/s10053-024-00912-9

Yuwei Ma, Yunliang Song, Bowen Li

引用次数: 0

Publisher Correction: A two-state Kalman estimator for atomic gravimetry 出版商更正：用于原子重力测量的双态卡尔曼估计器

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2024-09-23 DOI: 10.1140/epjd/s10053-024-00908-5

Bo-Nan Jiang

引用次数: 0

Beyond-mean-field effects in dynamics of BEC in the double-well potential 双阱势中 BEC 动力学的均方外场效应

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2024-09-20 DOI: 10.1140/epjd/s10053-024-00909-4

Fatkhulla Kh. Abdullaev, Ravil M. Galimzyanov, Akbar M. Shermakhmatov

引用次数: 0

Global lowest energy structures and electronic properties of InnM (M = Mn, Fe, Co, Ni, n = 6–9) clusters InnM（M = Mn、Fe、Co、Ni，n = 6-9）团簇的全局最低能量结构和电子特性

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2024-09-16 DOI: 10.1140/epjd/s10053-024-00903-w

Na Liu, Xin Liu, Hongshan Chen

{"title":"Global lowest energy structures and electronic properties of InnM (M = Mn, Fe, Co, Ni, n = 6–9) clusters","authors":"Na Liu, Xin Liu, Hongshan Chen","doi":"10.1140/epjd/s10053-024-00903-w","DOIUrl":"10.1140/epjd/s10053-024-00903-w","url":null,"abstract":"<div>The global lowest-energy structures of the transition metal (TM) doped InnM (M = Mn, Fe, Co, Ni, n = 6–9) clusters are studied by using genetic algorithm combined with spin-polarized density functional theories. The low energy structures suggest that the basic building units of InnM in this size range are TM doped triangular prism and octahedron. For the lowest energy isomers, the TM atoms are endohedrally doped in In8Co/Ni and In9Fe and exohedrally doped in other clusters. Charge density analysis shows that Mn atom offers electron to the Inn frames but Co and Ni accept electrons. The spin multiplicities of the lowest energy structures are the same with those of the TM atoms for the exohedrally doped InnM clusters for n = 6, 8, and the values are smaller by one for the endohedrally doped clusters. The molecular orbitals and density of states reveal that the 4s2 electrons of the TM atoms and the 5s25p valence electrons of the In atoms form superatomic orbitals consistent with the jellium model, but the 3d orbitals of the TM interact with the superatomic orbitals in different manners and are generally singly occupied.<h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":"78 9","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-precision,reference-free measurements of (2p rightarrow 1s) transitions in boron-like sulfur and argon 类硼硫和氩中 $$2p rightarrow 1s$$ 转换的高精度、无参照测量

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2024-09-13 DOI: 10.1140/epjd/s10053-024-00910-x

Louis Duval, Emily Lamour, Stéphane Macé, Jorge Machado, Marleen Maxton, Nancy Paul, Christophe Prigent, Martino Trassinelli, Paul Indelicato

{"title":"High-precision,reference-free measurements of (2p rightarrow 1s) transitions in boron-like sulfur and argon","authors":"Louis Duval, Emily Lamour, Stéphane Macé, Jorge Machado, Marleen Maxton, Nancy Paul, Christophe Prigent, Martino Trassinelli, Paul Indelicato","doi":"10.1140/epjd/s10053-024-00910-x","DOIUrl":"10.1140/epjd/s10053-024-00910-x","url":null,"abstract":"We have measured several (2p rightarrow 1s) transition energies in core-excited boron-like ions of sulfur and argon. The measurements are reference-free, with an accuracy of a few parts per million. The x-rays were produced by the plasma of an electron cyclotron resonance ion source and measured with a double-crystal x-ray spectrometer. The precision obtained for the measured (1s 2s^2 2p^2~J - 1s^2 2s^2 2p~J') lines is ({approx 3.8},{hbox {ppm}}) for sulfur and ({approx 2.5},{hbox {ppm}}) for argon. The line energies are compared to relativistic atomic structure calculations performed with the mdfgme multi-configuration Dirac–Fock code. This comparison is used for line identification and tests the theoretical methods, which are in agreement with the experimental data up to (49,hbox {meV}). The theoretical calculations have been extended to B, (hbox {C}^+), (hbox {Si}^{9+}), (hbox {Cr}^{19+}) and (hbox {Fe}^{21+}), which were the only B-like ions where such transitions were measured up to now.","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":"78 9","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Above-threshold ionization by polarization-crafted pulses 利用偏振创建脉冲实现阈值以上电离

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2024-09-04 DOI: 10.1140/epjd/s10053-024-00907-6

Camilo Granados, Enrique G. Neyra, Lorena Rebón, Marcelo F. Ciappina

{"title":"Above-threshold ionization by polarization-crafted pulses","authors":"Camilo Granados, Enrique G. Neyra, Lorena Rebón, Marcelo F. Ciappina","doi":"10.1140/epjd/s10053-024-00907-6","DOIUrl":"10.1140/epjd/s10053-024-00907-6","url":null,"abstract":"Coherent light has revolutionized scientific research, spanning biology, chemistry and physics. To delve into ultrafast phenomena, the development of high-energy, highly tunable light sources is instrumental. Here, the photoelectric effect is a pivotal tool for dissecting electron correlations and system structures. Particularly, above-threshold ionization (ATI), characterized by the simultaneous absorption of several photons leading to a final electron energy well above the ionization threshold, has been widely explored, both theoretically and experimentally. ATI decouples laser field effects from the structural information carried by photoelectrons, particularly when utilizing ultrashort pulses. In this contribution, we study ATI driven by polarization-crafted (PC) pulses, which offer precise scanning over the electron momentum, through an accurate change of the polarization state. PC pulses enable the manipulation of photoelectron momentum distributions, opening up new avenues for understanding and harnessing coherent light. Our work explores how structured light could allow for a proper understanding of emitted photoelectrons momentum distributions in order to distinguish between light structure effects and target structure effects.","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":"78 9","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142196114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Majorization-based entanglement criterion for fermion systems using the von Neumann entropy 使用冯-诺依曼熵的费米子系统基于大化的纠缠准则

IF 1.5 4区物理与天体物理

The European Physical Journal D Pub Date : 2024-09-03 DOI: 10.1140/epjd/s10053-024-00905-8

Y. Akbari-Kourbolagh, E. Rezazadeh-Dizaji

引用次数: 0