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A Derivation of Vector and Momentum Matrices

机译:向量和动量矩阵的推导

摘要

Given standard angular momentum and boost matrices, the commutation rules forvector and momentum matrices are solved. The resulting matrix components aredisplayed as detailed functions of spin with factors such as the square root of(2A+1). For comparison and as an alternative, Lyubarskii's formulas in terms ofClebsch-Gordan coefficients are recalled from the literature and displayed. Aset of these momentum matrices combined with the corresponding set of sixangular momentum and boost matrices form the generators of a nonunitary finitedimensional representation of the Poincare group of translations, rotations andboosts. A problem set is included. PACS: 11.30.Cp Lorentz and Poincare invariance
机译:给定标准角动量和升压矩阵,可以求解矢量和动量矩阵的换向规则。所得到的矩阵分量将显示为自旋的详细函数,并带有诸如(2A + 1)的平方根之类的因子。为了进行比较和替代,从文献中回顾并显示了以克莱布施-戈登系数表示的柳巴斯基公式。这些动量矩阵的集合与相应的六角动量矩阵和助推矩阵组合,形成了平移,旋转和助推的庞加莱组的非单位有限维表示的生成器。包括问题集。 PACS:11.30.Cp Lorentz和Poincare不变性

著录项

  • 作者

    Shurtleff, Richard;

  • 作者单位
  • 年度 2007
  • 总页数
  • 原文格式 PDF
  • 正文语种 {"code":"en","name":"English","id":9}
  • 中图分类

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