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On the Inevitable Lightness of Vacuum

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arxiv 2303.17495 v1 pith:2LXE2Y3H submitted 2023-03-30 hep-th gr-qc

classification hep-thgr-qc
keywords constantcosmologicalvacuumboundenergyentropylargeuniverse
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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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Cited by 1 Pith paper

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

  1. Quantum Spacetime, Quantum Gravity and Gravitized Quantum Theory

    gr-qc 2026-04 unverdicted novelty 5.0 of 10

    Quantum spacetime with a non-commutative dual explains the fixed Born rule of quantum theory and leads to gravitized quantum mechanics featuring dynamical probabilities and higher-order interference.

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