Abstract
The requirements for a relativistically invariant quantum field theory. Generators of the unitary representations of the universal covering group of the Poincaré group, and their commutation relations. The spectral decomposition of the two-point function G (2) in the quantum theory of the real scalar field. The contribution of the single particle states. The pole of ˜G (2) at the physical value of p 2 of the single particle. Finite mass corrections to the renormalized two-point function.
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© 2010 Springer-Verlag Berlin Heidelberg
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Arodź, H., Hadasz, D.L. (2010). Relativistic Invariance and the Spectral Decomposition of G (2) . In: Lectures on Classical and Quantum Theory of Fields. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15624-3_10
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DOI: https://doi.org/10.1007/978-3-642-15624-3_10
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-15623-6
Online ISBN: 978-3-642-15624-3
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