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In quantum field theory, the Dirac spinor is the spinor that describes all known fundamental particles that are fermions, with the possible exception of neutrinos. It appears in the plane-wave solution to the Dirac equation, and is a certain combination of two Weyl spinors, specifically, a bispinor that transforms "spinorially" under the action of the Lorentz group.

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  • Dirac-Spinor
  • Dirac spinor
  • Spinore di Dirac
  • ディラック・スピノル
  • 狄拉克旋量
rdfs:comment
  • 自由粒子のディラック方程式の解は、以下の平面波の形式を持つ: ここで、 は4成分スピノル (ディラック・スピノル) であり、 を変数とする関数ではない。 このスピノルは以下のように書き下せる: ここで、 は2成分スピノル はパウリ行列 はそれぞれエネルギー、質量、粒子の四元運動量(four-momentum) を示す。
  • In fisica lo spinore di Dirac è un "vettore" a quattro componenti ma non è un quadrivettore poiché non si trasforma come tale. Esso è soluzione dell'equazione di Dirac le cui componenti sono funzioni d'onda.
  • 量子場論中,狄拉克旋量(英語:Dirac spinor)為一,出現在自由粒子狄拉克方程式的平面波解中: ; 自由粒子的狄拉克方程式為: 其中(採用自然單位制) 為相對論性自旋½場,是狄拉克旋量,與波向量為的平面波有關,,為平面波的四維波向量,而為任意的,為一給定慣性系中的四維空間座標。 正能量解所對應的狄拉克旋量為 其中 為任意的雙旋量,為包立矩陣,為正根號
  • In quantum field theory, the Dirac spinor is the spinor that describes all known fundamental particles that are fermions, with the possible exception of neutrinos. It appears in the plane-wave solution to the Dirac equation, and is a certain combination of two Weyl spinors, specifically, a bispinor that transforms "spinorially" under the action of the Lorentz group.
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