A Quantum-Mechanical Mechanism for Reducing the Cosmological Constant

TL;DR

This paper proposes a quantum-mechanical mechanism that dynamically reduces the cosmological constant to zero, causing de Sitter space to decay into Minkowski space without anthropic reasoning, applicable to any quantum field theory coupled to gravity.

Contribution

It introduces a novel quantum adjustment process that discharges the cosmological constant in discrete steps, leading to a natural decay to Minkowski space.

Findings

De Sitter space becomes unstable and decays to Minkowski space.

The mechanism operates universally for any QFT coupled to gravity.

It eliminates the need for anthropic explanations for the small cosmological constant.

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.