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The de Sitter group and its presence at the late-time boundary

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arxiv 2206.04719 v1 pith:JIMFCGG5 submitted 2022-06-09 hep-th

classification hep-th
keywords representationsproductseriessitterboundarycomplementaryconstructinginner
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Our main goal here is to provide an introduction on some of the well established properties of the representation theory of SO(d+1,1), for those considering to think on physical problems set in de Sitter space in terms of these representations. With this purpose we review two intertwining maps, the map G that is used in constructing a well defined inner product for the complementary series representations and the map Q that is involved in constructing composite representations. We give explicit examples from the late-time boundary of de Sitter on the practical use of the complementary series inner product and in building a tensor product representation from unitary principal series irreducible representations.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Multi-Galileons in Curved Space

    hep-th 2025-05 conditional novelty 7.0 of 10

    A probe-brane construction yields multi-galileon theories on de Sitter space whose so(N)-breaking vacuum has Goldstone modes with vanishing kinetic terms, giving two dS vacua with different propagating degrees of freedom.

  2. A discrete series gauge field at the late-time boundary of $dS_4$

    hep-th 2026-07 accept novelty 6.0 of 10

    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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