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相关论文: Correlation effects in strong-field ionization of …

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We employ the R-matrix with time-dependence method to study attosecond angular streaking of F$^-$. Using this negative ion, free of long-range Coulomb interactions, we elucidate the role of short-range electron correlation effects in an…

原子物理 · 物理学 2020-05-20 G. S. J. Armstrong , D. D. A. Clarke , J. Benda , A. C. Brown , H. W. van der Hart

We report on a kinematically complete experiment on strong field double ionization of helium using laser pulses with a wavelength of 394\,nm and intensities of $3.5-5.7\times10^{14}\,W/cm^2$. Our experiment reaches the most complete level…

Collective optical excitations, such as localized surface plasmons in metallic nanoparticles and Mie resonances in high-index dielectrics, play a central role in nanoscale light--matter interactions. When such optical modes interact with…

We study the real-time evolution of an electron influenced by intense electromagnetic fields using the time-dependent basis light-front quantization (tBLFQ) framework. We focus on demonstrating the non-perturbative feature of the tBLFQ…

核理论 · 物理学 2017-06-07 Guangyao Chen , Xingbo Zhao , Yang Li , Kirill Tuchin , James P. Vary

We consider the elastic scattering of electrons by hydrogen atoms in the presence of a two-color circularly polarized laser field in the domain of moderate intensities below $10^{13}$ W/cm$^2$ and high projectile energies. A hybrid approach…

原子物理 · 物理学 2023-06-16 Gabriela Buica

We study the role of electron-electron correlation in the ground-state of Ne, as well as in photoionization dynamics induced by an attosecond XUV pulse. For a selection of central photon energies around 100 eV, we find that while the…

原子物理 · 物理学 2018-01-31 Juan J. Omiste , Lars Bojer Madsen

Laser radiation incident on a ferromagnetic sample produces excited electrons and currents whose spin polarization must not be aligned with the magnetization -- an effect due to spin-orbit coupling that is ubiquitous in spin- and…

材料科学 · 物理学 2023-11-03 Oliver Busch , Franziska Ziolkowski , Ingrid Mertig , Jürgen Henk

The relativistic coupled-cluster theory has been employed to calculate the magnetic dipole and electric quadrupole hyperfine structure constants for the stable isotopes $^{45}$Sc and $^{89}$Y. The role of electron correlation is found to be…

原子物理 · 物理学 2009-11-11 Bijaya K. Sahoo , Thomas Beier , B. P. Das , R. K. Chaudhuri , Debashis Mukherjee

We extend the semiclassical two-step model [Phys. Rev. A 94, 013415 (2016)] to include a multielectron polarization-induced dipole potential. Using this model we investigate the imprints of multielectron effects in the momentum…

原子物理 · 物理学 2018-08-22 N. I. Shvetsov-Shilovski , M. Lein , L. B. Madsen

A theoretical description of time correlation functions for electron properties in the presence of a positive ion of charge number Z is given. The simplest case of an electron gas distorted by a single ion is considered. A semi-classical…

统计力学 · 物理学 2009-11-13 Jeffrey M. Wrighton , James W. Dufty

The ionization of a one-dimensional model Helium atom in short laser pulses using time-dependent density functional theory is investigated. We calculate ionization probabilities as a function of laser intensity by approximating the…

原子物理 · 物理学 2009-11-13 F. Wilken , D. Bauer

With a classical ensemble model that including electron correlations during the whole ionization process, we investigated strong-field sequential double ionization of Ar by elliptically polarized pulses at the quantitative level. The…

原子物理 · 物理学 2015-06-04 Yueming Zhou , Cheng Huang , Qing Liao , Peixiang Lu

The correlated motion of electrons in a one dimensional system with an externally applied longitudinal electric field is discussed. Within the tight binding model we show that in addition to the well known Bloch oscillations the…

凝聚态物理 · 物理学 2009-11-10 F. Claro , J. F. Weisz , S. Curilef

We investigate effects of strong interactions on the electromagnetic dissociation of nuclei in heavy ion collisions. We start from the eikonal approach to the equivalent photon method to describe the electromagnetic contributions to the…

核理论 · 物理学 2011-07-19 A. Muendel , G. Baur

Using the molecular strong-field approximation we consider the effects of molecular symmetry on the ionization of molecules by a strong, linearly polarized laser pulse. Electron angular distributions and total ionization yields are…

We study strong-field molecular ionization as a function of pulse duration. Experimental measurements of the photoelectron yield for a number of molecules reveal competition between different ionization continua (cationic states) which…

We present a theoretical approach to investigate the scattering of polarized electrons from light nuclei using the multipole expansion for the scattering cross section within the framework of the unified electroweak theory. Scattering…

核理论 · 物理学 2026-05-01 Minh Truong Vo , Vu Dong Tran , Quang Hung Nguyen

This study investigates the interplay between relativistic effects and electron correlation effects on the first ionization energies of heavy atoms (Au through Rn, Z = 79-86). We perform two complementary analyses: (1) comparing…

原子物理 · 物理学 2026-02-06 Mohamed Kahil , Fatima Fakih , Nabil Joudieh , Nidal Chamoun

Intense-field ionization of the hydrogen molecular ion by linearly-polarized light is modelled by direct solution of the fixed-nuclei time-dependent Schr\"odinger equation and compared with recent experiments. Parallel transitions are…

计算物理 · 物理学 2009-11-10 Liang-You Peng , Daniel Dundas , J F McCann , K T Taylor , I D Williams

The x-ray energies and transition rates associated with single and double electron radiative transitions from the double K hole state $2s2p$ to the $1s2s$ and $1s^{2}$ configurations of 11 He-like ions ($10\!\leq\!Z\!\leq\!47$) are…

原子物理 · 物理学 2020-02-10 Xiaobin Ding , Mingxin Cao , Denghong Zhang , Mingwu Zhang , Yingli Xue , Deyang Yu , Chenzhong Dong