second quantization;
CAR algebra;
Clifford algebra;
Dirac matrix;
spinor;
Dirac conjugation;
Lorentz transformation;
Lorentz covariance;
causality;
charge operator;
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摘要:
In the superalgebraic representation of spinors using Grassmann densities and the corresponding derivatives, we introduce a generalization of Dirac conjugation, and this generalization yields Lorentz-covariant transformations of conjugate spinors. The signature of the generalized gamma matrices, the number of them, and the decomposition of second quantization with respect to momenta are given by a variant of the generalized Dirac conjugation and by the requirement that the algebra of canonical anticommutation relations should be preserved under transformations of spinors and conjugate spinors.