A Quantum-Mechanical Mechanism for Reducing the Cosmological Constan

Nemanja Kaloper
Date Range
Mon December 12th 2022, 2:00pm
Speaker Affiliation
UC Davis
Varian 355

We discuss 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 vanishing cosmological constant, the evolution favors the terminal Minkowski space without a need for anthropics. The mechanism works for any QFT coupled to gravity.