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The Gauge and Lorentz invariance of the non-linear ponderomotive 4-force

T Rowlands1990年Plasma Physics and Controlled FusionIF 2.2出版社

The non-linear ponderomotive force of laser-plasma interactions given by HORA (1985, Physics Fluids 28, 3706) is used as a basis for deriving the Lorentz and Gauge invariant expression. Hora's expression is reformulated as a 4-force in Minkowski space-time. The stress-energy tensor of this system is also derived. The Gauge invariance and Lorentz invariance are a direct result of the reformulation.

日本語訳

レーザー・プラズマ相互作用における非線形ポンデロモーティブ力(HORA, 1985, Physics Fluids 28, 3706)を基礎として、ローレンツ不変かつゲージ不変な表現を導出する。HORAの表現は、ミンコフスキー時空における4元力として再定式化される。また、この系の応力・エネルギーテンソルも導出される。ゲージ不変性とローレンツ不変性は、この再定式化の直接的な結果として得られる。

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