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arXiv · 2204.13124

A Quantum-Mechanical Mechanism for Reducing the Cosmological Constant

Nemanja Kaloper·Alexander Westphal
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Abstract

We exhibit a mechanism which dynamically adjusts cosmological constant toward $0^+$. The adjustment is quantum-mechanical, discharging cosmological constant in random discrete steps. It renders de Sitter space unstable, and triggers its decay toward Minkowski. Since the instability dynamically stops at $\Lambda = 0$, the evolution favors the terminal Minkowski space without a need for anthropics. The mechanism works for any QFT coupled to gravity.

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Nemanja Kaloper, Alexander Westphal. 2022-04-27. A Quantum-Mechanical Mechanism for Reducing the Cosmological Constant. https://doi.org/10.1103/physrevd.106.l101701

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