Quantum effects on propagation of surface Langmuir oscillations in semi-bounded quantum plasmas

In-Seok, Chang; Jung, Young-Dae

doi:10.1016/j.physleta.2007.10.004

Cited by 25 publications

(9 citation statements)

References 10 publications

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“…al. [35] in a semi-bounded quantum plasma using the specular reflection method. Such QHD model has been known to be one of the powerful models for the investigation of wave dynamics in quantum plasmas [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52].…”

Section: Introductionmentioning

confidence: 99%

Surface plasmons in a semi-bounded massless Dirac plasma

2018

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The collective excitation of surface plasmons in a massless Dirac plasma (e.g., graphene) half-space (bounded by air) is investigated using a relativistic quantum fluid model. The unique features of such surface waves are discussed and compared with those in a Fermi plasma. It is found that in contrast to Fermi plasmas, the long-wavelength surface plasmon frequency (ω) in massless Dirac plasmas is explicitly nonclassical, i.e., ω ∝ 1/ √ , where h = 2π is the Planck's constant. Besides some apparent similarities between the surface plasmon frequencies in massless Dirac plasmas and Fermi plasmas, several notable differences are also found and discussed. Our findings elucidate the properties of surface plasmons that may propagate in degenerate plasmas where the relativistic and quantum effects play a vital role.

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Section: Introductionmentioning

confidence: 99%

Surface plasmons in a semi-bounded massless Dirac plasma

2018

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“…Also, we have a two dimensional problem, which means k 2 = k 2 x + k 2 z . Note that surface waves are well studied for an ordinary electromagnetic plasma and its dispersion relations are well known [13][14][15]. Those articles studied quantum effects in the electromagnetic plasma.…”

Section: A Dispersion Equationmentioning

confidence: 99%

Surface waves in a collisional quark-gluon plasma

Baiseitov,

Moldabekov,

Blaschke

et al. 2020

Preprint

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Surface waves propagating in the semi-bounded collisional hot QCD medium (quark-gluon plasma) are considered. To investigate the effect of collisions as damping and non-ideality factor, the longitudinal and transverse dielectric functions of the quark-gluon plasma are used within the Bhatnagar-Gross-Krook (BGK) approach. The results were obtained both analytically and numerically in the long wavelength limit. First of all, collisions lead to smaller values of surface wave frequency and their stronger damping. Secondly, the results show that non-ideality leads to the appearance of a new branch of surface waves compared to the collisionless case. The relevance of the surface excitations (waves) for the QGP realized in experiments is discussed.

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“…Plasma can be regarded as quantum when the quantum nature of its particles significantly affects its macroscopic properties [14]. There has been a great interest in investigating physical properties of quantum plasmas since the quantum plasmas can be found in various nano-scale objects such as nano-wires, quantum dot, and semiconductor devices as well as in dense laser produced plasmas [15]. There are various models to study the quantum effects in plasma, for example, the Wigner-Poisson system which involves an integro-differential system and the popular QHD model.…”

Section: Introductionmentioning

confidence: 99%

Electrostatic Surface Modes in Magnetized Quantum Electron-Hole Plasma

Mohamed¹,

Salah²

2021

JMP

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The excitation of electrostatic surface waves on a semibounded quantum plasma-vacuum interface parallel to an applied magnetic field with electron-hole degeneracy is investigated. The wave equations of the electrostatic potential and both of the perturbed electron and hole plasma densities have been solved analytically. By using quantum hydrodynamic (QHD) model and the Poisson's equation with appropriate boundary conditions, the general dispersion relation of these surface modes has been obtained. It is also solved and studied numerically for different cases of plasmas (magnetized or unmagnetized, classical or quantum). We have found that the density ratio of hole-electron plasma plays essential role on the dispersion of the modes along the wavelength beside the quantum and magnetic field.

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Quantum effects on propagation of surface Langmuir oscillations in semi-bounded quantum plasmas

Cited by 25 publications

References 10 publications

Surface plasmons in a semi-bounded massless Dirac plasma

Surface plasmons in a semi-bounded massless Dirac plasma

Surface waves in a collisional quark-gluon plasma

Electrostatic Surface Modes in Magnetized Quantum Electron-Hole Plasma

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