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        "quote": "并且可用于生成一个具有 $n = 4$ 的克利福德代数。这样的克利福德代数具有 $2 ^ { 4 } = 1 6$ 维数。若试图用一组矩阵表示这个代数，最低可能的阶结果是 $4 \\times 4$ 个矩阵。这些矩阵所作用的向量性量 $\\psi$ 被称为 <u id=\"concept-6-spinor\" class=\"concept-term\" data-concept-identity=\"urn:uuid:26ae89e4-05be-4f48-9a53-8ecdb3861cc9\" data-concept-route=\"/concept-identities#concept-26ae89e4-05be-4f48-9a53-8ecdb3861cc9\">旋量(spinor)</u>；它们至少有四个分量，这一事实与相对论性自旋的概念有关。对狄拉克理论的最大检验是对称为正电子的反粒子的预言，安德森于1932年通过实验证明了其存在。",
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        "quote": "and can be used to generate a Clifford algebra with $n = 4$ . Such a Clifford algebra has $2 ^ { 4 } = 1 6$ dimensions. If one attempts to represent this algebra by a set of matrices, the lowest possible order turns out to be $4 \\times 4$ matrices. The vectorial quantities $\\psi$ on which these matrices act are known as <u class=\"concept-term\" data-concept-identity=\"urn:uuid:26ae89e4-05be-4f48-9a53-8ecdb3861cc9\" data-concept-route=\"/concept-identities#concept-26ae89e4-05be-4f48-9a53-8ecdb3861cc9\" id=\"first-6383790d2cefd4edbd3d-en\">spinors</u>; they have at least four components, a fact related to the concept of relativistic spin. The greatest test for Dirac’s theory was the prediction of antiparticles known as positrons, shown to exist experimentally by Anderson in 1932.",
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