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hep-th2026
An observer's quantization of 3d de Sitter
Andreas Blommaert, Damiano Tietto, Herman Verlinde
What is the density of states of the de Sitter static patch? We propose a definition and calculation of such a density in 3d dS. Our proposal involves a sum over an SL(2,$\mathbb{Z…
hep-th2026
Time in gravitational subregions and in closed universes
Andreas Blommaert, Chang-Han Chen
What are gauge-invariant local observables in a subregion in quantum gravity? How does one even define such a subregion non-perturbatively? We study these questions in JT gravity.…