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Principal and complementary series representations at the late-time boundary of de Sitter
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Principal and complementary series representations at the late-time boundary of de Sitter
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We demonstrate how free massive scalar fields in the set up that usually appears in early universe inflationary studies, correspond to the principal series and complementary series representations of the group SO(d+1,1) by introducing late-time operators and computing their two-point functions.
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Cited by 1 Pith paper
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A discrete series gauge field at the late-time boundary of $dS_4$
Both Δ=1 and Δ=2 late-time Maxwell operators on planar dS4 furnish the photon unitary discrete series of SO(4,1), which splits into opposite-helicity summands via self-dual field-strength sectors.
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