Covariant Quantization of "Massive" Spin-3/2 Fields in the de Sitter Space

We present a covariant quantization of the free "massive" spin-3/2 fields in four-dimensional de Sitter space-time based on analyticity in the complexified pseudo-Riemannian manifold. The field equation is obtained as an eigenvalue equation of the Casimir operator of the de Sitter group. The solutions are calculated in terms of coordinate-independent de Sitter plane-waves in tube domains and the null curvature limit is discussed. We give the group theoretical content of the field equation. The Wightman two-point function $S^{i \bar j}_{αα'}(x,x')$ is calculated. We introduce the spinor-vector field operator $Ψ_α(f)$ and the Hilbert space structure. A coordinate-independent formula for the field operator $Ψ_α(x)$ is also presented.

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