Dynamic polarizabilities for screened potentials modified by ring potential

Yadav, Chanchal; Lumb, Sonia; Talwar, Shalini Lumb; Prasad, Vinod

doi:10.1063/5.0002071

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Montgomery and Pupyshev [28] focused their interests on the effect of spherical confinement on the frequency‐dependent dipole polarizabilities and shielding factors of the confined H atom in SCP and ECSCP. More recently, Yadav et al [29, 30] have investigated the static and dynamic multipole polarizabilities of the H atom in modified ring‐shaped screened Coulomb potentials which include SCP, ECSCP, and Hulthén potentials. In their work, the system energies and wave functions were obtained by employing the finite difference method and the multipole polarizabilites were calculated through the sum‐over‐states formalism.…”

Section: Introductionmentioning

confidence: 99%

Multipole polarizabilities of spherically confined hydrogen atom and positronium in screened Coulomb potential

Jiao

Liu

et al. 2022

Int J of Quantum Chemistry

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The static multipole polarizabilities of the hydrogen atom interacting with a screened Coulomb potential confined in an impenetrable spherical box are calculated in the sum‐over‐states formalism. The system eigenenergies and wave functions are produced by employing the generalized pseudospectral method. High‐precision results are obtained to resolve the discrepancies between previous predictions, and used to analyze the critical behavior of the system with varying the confinement radius and screening parameter. A scaling law of the multipole polarizabilities with respect to the nuclear charge and electron reduced mass is proposed. Based on the scaling law we extend the investigation to the spatially confined positronium atom in a screened Coulomb potential by utilizing a reduced one‐electron model. The results are in good agreement with previous estimates. However, it is conjectured that when the confinement radius is small the confined positronium atom should be treated more reasonably by an effective two‐electron model.

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Section: Introductionmentioning

confidence: 99%

Multipole polarizabilities of spherically confined hydrogen atom and positronium in screened Coulomb potential

Jiao

Liu

et al. 2022

Int J of Quantum Chemistry

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Non-ideal classical plasma: laser pulse effects and dynamic dipole polarizabilities

Lumb Talwar,

Lumb,

Sen

et al. 2023

J. Phys. B: At. Mol. Opt. Phys.

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The properties of a hydrogen atom inside a non-ideal classical plasma, in terms of its behaviour in the presence of an applied laser pulse, are explored. The strength of the pulse is chosen such that it mantains near sphericity of the system. The pulse parameters have a strong bearing on the final state attained by the system after its interaction with the pulse. Dynamic dipole polarizability is calculated and the poles are observed to be red shifted with increase in non-ideality as well as increase in temperature of plasma. These polarizabilities for frequencies of the field below the frequency corresponding to the first pole are found to be greater for larger values of field frequencies, plasma non-ideality and electron plasma temperatures.

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Dynamic polarizabilities for screened potentials modified by ring potential

Cited by 2 publications

References 10 publications

Multipole polarizabilities of spherically confined hydrogen atom and positronium in screened Coulomb potential

Multipole polarizabilities of spherically confined hydrogen atom and positronium in screened Coulomb potential

Non-ideal classical plasma: laser pulse effects and dynamic dipole polarizabilities

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