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DOE OSTI · 2580070

On the inevitable lightness of vacuum

Freidel, Laurent·Kowalski-Glikman, Jerzy (ORCID:0000000238668087)·Leigh, Robert·Minic, Djordje
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Abstract

In this essay, we present a new understanding of the cosmological constant problem, built upon the realization that the vacuum energy density can be expressed in terms of a phase space volume. We introduce a UV-IR regularization which implies a relationship between the vacuum energy and entropy. Combining this insight with the holographic bound on entropy then yields a bound on the cosmological constant consistent with observations. It follows that the universe is large, and the cosmological constant is naturally small, because the universe is filled with a large number of degrees of freedom.

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Freidel, Laurent, Kowalski-Glikman, Jerzy (ORCID:0000000238668087), Leigh, Robert, Minic, Djordje. 2023-07-20. On the inevitable lightness of vacuum. https://doi.org/10.1142/s021827182342004x

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