Wave-particle interactions in quantum plasmas

Misra, A. P.; Brodin, Gert

doi:10.1007/s41614-022-00063-7

Cited by 11 publications

(5 citation statements)

References 63 publications

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“…The simple quantum model considered here can eventually be extended to a more complete quantum kinetic description of electron plasma waves [24]. In a recent work, this kinetic approach revealed the existence of multi-plasmon resonances associated with electron Landau damping [25]. In contrast here, the multiplasmon resonances also involve the presence of electromagnetic waves, which are absent there.…”

Section: Discussionmentioning

confidence: 86%

“…For this purpose, we assume an electron nearly at rest, with initial momentum, p e = m * c, such that it can be neglect. In this case, we use ò e ; m * c 2 in the first equation (25), with the effective mass m * = m e γ 0 and ( ) a 1 0 0 2 1 2 g = + . In the expression for the relativistic factor γ 0 , we have neglected the contributions from the electrostatic wave, which can easily be included when justified…”

Section: Recoil Formulamentioning

confidence: 99%

“… ¢  , satisfying the conservation relations (25), and defined as , for a 0 = 3 (black curve) and a 0 = 10 (red curve), after nonlinear Compton scattering.…”

Section: Scattering Probabilitymentioning

confidence: 99%

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Compton scattering of plasmons

Mendonça¹,

Haas

2023

Phys. Scr.

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We extend de concept of Compton scattering to the case of plasmons. This concept was originally applied to electrons in vacuum. Here, we consider electrons in a plasma, and study the scattering properties of photon-plasmon interactions. We show that a number n of plasmons with frequency ω ≃ ωp is scattered by an electron, for an incident photon with frequency ω′ ≥ ωp, where ωp is the plasma frequency. We describe the general case of arbitrary n and assume that Compton scattering of plasmons is intrinsically a nonlinear process. Our theoretical model is based on Volkov solutions of the Klein-Gordon equation describing the state of relativistic electrons, when the spin is ignored. We derive the corresponding scattering probability, as well as the recoil formula associated with arbitrary the final electron states. This process can be relevant to intense laser plasma interactions.

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Section: Discussionmentioning

confidence: 86%

Section: Recoil Formulamentioning

confidence: 99%

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Compton scattering of plasmons

Mendonça¹,

Haas

2023

Phys. Scr.

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“…Topical collection "New Aspects of Quantum Plasma Physics (QP)" is organized by A.A. Mamun and published one article in 2021 (Manfredi et al 2021) and six articles in 2022 (Hossain and Mandal 2022;Mannan 2022;Brodin and Zamanian 2022;Misra and Brodin 2022;Haas and Mahmood 2022;Masood et al 2022).…”

Section: Volume 6 Publicationmentioning

confidence: 99%

Editorial : Reviews of Modern Plasma Physics: Volume 6

Kikuchi

2023

Rev. Mod. Plasma Phys.

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“…The designed codes [19][20][21][22][23][24], specifically for charged particles, have demonstrated the value of simulating drift orbits. Through numerical experiments and kinetic theory, researchers have gained profound insights into plasma phenomena, including instabilities [25][26][27], wave-particle interactions [28,29], and particle confinement [30,31]. Furthermore, the study of guiding centers is crucial in fusion energy investigations, especially for comprehending the dynamics of charged particles within magnetic confinement devices [32].…”

Section: Introductionmentioning

confidence: 99%

Structure-preserving algorithms for guiding center dynamics based on the slow manifold of classical Pauli particle

ZHANG 张,

WANG 王,

XIAO 肖

et al. 2024

Plasma Sci. Technol.

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Classical Pauli particle (CPP) serves as a slow manifold, substituting the conventional guiding center dynamics. Based on the CPP, we utilize averaged vector field (AVF) method in the computations of drift orbits. Demonstrating significantly higher efficiency, this advanced method is capable of accomplishing the simulation in less than one-third time of directly computing the guiding center motion. In contrast to the CPP-based Boris algorithm, this approach inherits the advantages of the AVF method, yielding stable trajectories even achieved with a tenfold time step and reducing energy error with two orders of magnitude. By comparing these two CPP algorithms with the traditional RK4 method, numerical results indicate the remarkable performance in terms of both computational efficiency and error elimination. Moreover, we verify the properties of slow manifold integrators and successfully observe the bounce on both sides of the limiting slow manifold with initial conditions chosen off. To evaluate the practical value of the methods, we conduct simulations in non-axisymmetric perturbation magnetic fields as part of the experiments, demonstrating our CPP-based AVF method can handle simulations under complex magnetic field configurations with high accuracy, which the CPP-based Boris algorithm lacks. Through numerical experiments, we demonstrate CPP can replace guiding center dynamics in using energy-preserving algorithms for computations, providing a new, efficient, as well as stable approach for applying structure-preserving algorithms in plasma simulations.

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Wave-particle interactions in quantum plasmas

Cited by 11 publications

References 63 publications

Compton scattering of plasmons

Compton scattering of plasmons

Editorial : Reviews of Modern Plasma Physics: Volume 6

Structure-preserving algorithms for guiding center dynamics based on the slow manifold of classical Pauli particle

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