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New Quantum Framework Challenges Time Travel Theories

12/25/2025

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Summary

Story summary

Hainan University researchers led by Cai Qingyu propose a quantum-level framework explaining why time moves forward and why past time travel is impossible.
They argue the arrow of time arises from the interconnectedness of quantum components and does not depend on external observations or disturbances.
The study, published in the Annals of Physics, challenges Ludwig Boltzmann's entropy concept that time progresses from order to disorder.

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Story summary

Hainan University researchers led by Cai Qingyu propose a quantum-level framework explaining why time moves forward and why past time travel is impossible.
They argue the arrow of time arises from the interconnectedness of quantum components and does not depend on external observations or disturbances.
The study, published in the Annals of Physics, challenges Ludwig Boltzmann's entropy concept that time progresses from order to disorder.