Model Describes “Cosmic Lockdown” Suppressing False-Vacuum Tunneling

Surrounding quantum fields suppress tunneling

According to the report, researchers modeled quantum fields interacting as the universe expands. In that simplified setup, the surrounding fields limited the quantum tunneling that could move a field between energy states. The team calls the proposed effect “cosmic lockdown.”

The supplied report describes concerns that quantum fields could tunnel into lower-energy states, but does not provide a directly comparable earlier measurement or estimate.

The model indicates that interactions with surrounding fields can strongly suppress, though not eliminate, false-vacuum tunneling.

If a mechanism like this also applies in more realistic cosmological settings, it could help explain how a field already in a false vacuum remains stable. The researchers caution that more realistic models are needed before applying the result to actual fields such as the Higgs field.