A microscopic model of de Sitter spacetime with an observer - INSPIRE

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A microscopic model of de Sitter spacetime with an observer

Damiano Tietto
(
- Princeton U.
)
,
Herman Verlinde
(
- Princeton U.
)

Feb 6, 2025

15 pages

e-Print:

2502.03869 [hep-th]

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Abstract: (arXiv)

We introduce a simple microscopic quantum mechanical model of low-dimensional de Sitter holography with an observer. Using semiclassical gravity and elementary thermodynamic considerations, we derive a formula for the total entropy of a 3D Schwarzschild-de Sitter universe with an observer. We then match this entropy formula with the exactly known spectral density of the double scaled SYK model. Our result gives a de Sitter interpretation of the appearance of two notions of temperature in DSSYK.

Note:

15 pages, 3 figures

References(15)

Figures(0)

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