New theory shows time exists in quantum superpositions, ticking fast and slow

Researchers from Stevens Institute of Technology, Colorado State University, and NIST proposed that time itself can exist in quantum superposition.

In this picture, a single atomic clock could effectively tick both faster and slower at the same time.

The theory links relativity and quantum effects through quantum states and squeezed vacuum states, with lab tests planned.

If confirmed, it could uncover new physics at the quantum-relativity boundary and improve ultra-precise clocks.