Multipole polarizabilities and dipole oscillator strengths of H-atom in nonideal classical plasmas

Sen, K. D.; Kumar, Kirtee; Yadav, Chanchal; Prasad, Vinod

doi:10.1140/epjp/s13360-021-02288-w

Cited by 17 publications

(13 citation statements)

References 35 publications

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“…The wave equation for the spherically confined hydrogen atom embedded in the NICP has been solved using the finite difference method, and the effects of the NICP temperature and particle density on energy levels, oscillator strengths and multiple polarizabilities have been investigated. [ 31 ] The change in plasma temperature and density leads to functional effects on the mentioned physical properties by changing the shielding effect. Structural properties of ground and first doubly excited resonance states of He atom embedded in the NICP are addressed in a variational framework.…”

Section: Introductionmentioning

confidence: 99%

Photoionization Cross Section for H@Cn${\text{H@C}}_{n}$ Implanted in Nonideal Classical Plasmas

Bahar

Martínez‐Flores

2023

Annalen der Physik

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In this study, photoionization cross sections of guest hydrogen atom in endohedral fullerene () modeled by the Woods–Saxon confinement potential implanted in the nonideal classical plasma (NICP) under spherical confinement are reported for the first time in the related literature. The relevant wave equation is solved numerically via the tridiagonal matrix method and then the energy levels, bound and continuum wave functions are interpreted. Plasma effect is examined by considering plasma temperature and density and is evaluated in the photoionization process. Since the plasma modifies the discrete and continuum spectra by changing the potential energy of hydrogen atom, it closely affects the overlapping of the wave functions of ground state and continuum state. This effect has a distinct response on photoionization resonances. Using different values of endohedral confinement parameters, which means regarding different types of fullerenes, detailed analysis of energy levels, bound and continuum wave functions, and photoionization cross sections are provided by evaluating confinement width, depth, smoothing effect and distance from the spherical encompassement center. The photoionization process of implanted in the NICP (nonideal classical plasma) is highly sensitive to both plasma and endohedral confinement. At this sensitivity, Cooper resonance character is like an encoder for fullerene structure.

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Section: Introductionmentioning

confidence: 99%

Photoionization Cross Section for H@Cn${\text{H@C}}_{n}$ Implanted in Nonideal Classical Plasmas

Bahar

Martínez‐Flores

2023

Annalen der Physik

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“…In recent years, with the gradual development of plasma technology, the study on the structural properties of atomic and molecular systems under the influence of external environments is one of the hot research areas [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Several studies on the atomic systems under Debye screening and modified Debye screening are reported [15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

The 3Po states of exotic molecular ions with exponential-cosine-screened Coulomb potentials

Jiang

Kar

2023

Preprint

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We investigate the bound states, Borromean states and resonant states for the 3Po (J = 1) states of $pp\mu$, $dd\mu$ and$tt\mu$ molecular ions interacting with exponential-cosine-screened Coulomb potential. The bound 3Po state energies are calculated using the Rayleigh-Ritz variational method and the resonance parameters are calculated using the stabilization method. Highly correlated exponential wave functions are used. The bound 3Po state energies, the 3Po resonance parameters (energy and width), along with 1S and 2S threshold energies of the $p\mu$, $d\mu$ and$t\mu$ atoms are also reported for different shielding parameters. The critical values of the screening parameters for the 3Po states are also reported for which the three-body exotic molecular systems are stable while all the possible fragments are unbound, that is shows windows for Borromean binding.

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“…They also found that the radial distribution function becomes diffuse when the temperature decreases or the plasma density increases. Sen et al [14] have dealt with multipole polarizabilities as well as dipole oscillator strengths for a hydrogen atom embedded in such a plasma.…”

Section: Introductionmentioning

confidence: 99%

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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Multipole polarizabilities and dipole oscillator strengths of H-atom in nonideal classical plasmas

Cited by 17 publications

References 35 publications

Photoionization Cross Section for H@Cn${\text{H@C}}_{n}$ Implanted in Nonideal Classical Plasmas

Photoionization Cross Section for H@Cn${\text{H@C}}_{n}$ Implanted in Nonideal Classical Plasmas

The 3Po states of exotic molecular ions with exponential-cosine-screened Coulomb potentials

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

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