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Abstract
A nonlinear fluid model of high-frequency plasmons in doped graphene is derived by taking fluid moments of the semi-classical kinetic equation for the electron gas. As a closure of the fluid moments, adiabatic compression is assumed with a given form of the distribution function, combined with an exact linear response based on the linearized Vlasov-Poisson system. In the linear regime, the model is in the long wavelength limit consistent with previous results using the random phase approximation for a two-dimensional electron gas, while it neglects the short-range interactions between massless Dirac fermions. The fluid model may be used to study non-linear plasmonic wave mixing and optical coupling to lasers in graphene.
Original language | English |
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Article number | 012105 |
Number of pages | 6 |
Journal | Physics of Plasmas |
Volume | 25 |
Issue number | 1 |
DOIs | |
Publication status | Published - 4 Jan 2018 |
Keywords
- high-frequency plasmons
- doped graphene
- fluid moments
- electron gas
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Dive into the research topics of 'Semiclassical fluid model of nonlinear plasmons in doped graphene'. Together they form a unique fingerprint.Projects
- 1 Finished
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Multi-Scale Numerical Modelling of Magnetised Plasma Turbulence
Eliasson, B. (Principal Investigator), Phelps, A. (Co-investigator) & Ronald, K. (Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
26/01/15 → 25/07/18
Project: Research