Physicists at Tsinghua University have simulated false vacuum decay using a ring of Rydberg atoms, experimentally reproducing the quantum bubble nucleation long predicted as a mechanism for the vacuum to collapse.
False vacuum decay sits at the intersection of quantum field theory and general relativity. Different vacuum states correspond to local energy minima in quantum fields. The transition to a true vacuum could alter fundamental physics across the entire universe.
The experimental setup used a ring of repulsive Rydberg atoms arranged with alternating spin patterns. Laser excitation broke symmetry, allowing two energy states to represent false and true vacuums. The decay rate depended on laser strength, consistent with quantum tunneling predictions.
This study confirms theoretical models of false vacuum decay and provides a new platform to probe the interface between quantum mechanics and relativity. The findings were published in Physical Review Letters.