### Abstract

Language | English |
---|---|

Article number | 072302 |

Number of pages | 7 |

Journal | Physics of Plasmas |

Volume | 19 |

Issue number | 7 |

DOIs | |

Publication status | Published - 10 Jul 2012 |

### Fingerprint

### Keywords

- electromagnetic waves
- quantum plasma
- nonlinear couplings
- CPEM-EC

### Cite this

*Physics of Plasmas*,

*19*(7), [072302]. https://doi.org/10.1063/1.4731733

}

*Physics of Plasmas*, vol. 19, no. 7, 072302. https://doi.org/10.1063/1.4731733

**Nonlinear propagation of coherent electromagnetic waves in a dense magnetized plasma.** / Shukla, P. K.; Eliasson, B.; Stenflo, L.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Nonlinear propagation of coherent electromagnetic waves in a dense magnetized plasma

AU - Shukla, P. K.

AU - Eliasson, B.

AU - Stenflo, L.

PY - 2012/7/10

Y1 - 2012/7/10

N2 - We present an investigation of the nonlinear propagation of high-frequency coherent electromagnetic waves in a uniform quantum magnetoplasma. Specifically, we consider nonlinear couplings of right-hand circularly polarized electromagnetic-electron-cyclotron (CPEM-EC) waves with dispersive shear Alfvén (DSA) and dispersive compressional Alfvén (DCA) perturbations in plasmas composed of degenerate electron fluids and non-degenerate ion fluids. Such interactions lead to amplitude modulation of the CPEM-EC wave packets, the dynamics of which is governed by a three-dimensional nonlinear Schrödinger equation (NLSE) with the frequency shift arising from the relativistic electron mass increase in the CPEM-EC fields and density perturbations associated with the DSA and DCA perturbations. Accounting for the electromagnetic and quantum forces, we derive the evolution equation for the DSA and DCA waves in the presence of the magnetic field-aligned ponderomotive force of the CPEM-EC waves. The NLSE and the driven DSA and DCA equations are then used to investigate the modulational instability. The relevance of our investigation to laser-plasma interaction experiments and the cores of white dwarf stars is pointed out.

AB - We present an investigation of the nonlinear propagation of high-frequency coherent electromagnetic waves in a uniform quantum magnetoplasma. Specifically, we consider nonlinear couplings of right-hand circularly polarized electromagnetic-electron-cyclotron (CPEM-EC) waves with dispersive shear Alfvén (DSA) and dispersive compressional Alfvén (DCA) perturbations in plasmas composed of degenerate electron fluids and non-degenerate ion fluids. Such interactions lead to amplitude modulation of the CPEM-EC wave packets, the dynamics of which is governed by a three-dimensional nonlinear Schrödinger equation (NLSE) with the frequency shift arising from the relativistic electron mass increase in the CPEM-EC fields and density perturbations associated with the DSA and DCA perturbations. Accounting for the electromagnetic and quantum forces, we derive the evolution equation for the DSA and DCA waves in the presence of the magnetic field-aligned ponderomotive force of the CPEM-EC waves. The NLSE and the driven DSA and DCA equations are then used to investigate the modulational instability. The relevance of our investigation to laser-plasma interaction experiments and the cores of white dwarf stars is pointed out.

KW - electromagnetic waves

KW - quantum plasma

KW - nonlinear couplings

KW - CPEM-EC

UR - http://aip.scitation.org/journal/php

U2 - 10.1063/1.4731733

DO - 10.1063/1.4731733

M3 - Article

VL - 19

JO - Physics of Plasmas

T2 - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 7

M1 - 072302

ER -