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Time Flows Forward or Backward At Quantum Levels, Researchers Suggest

"What if time is not as fixed as we thought?" That's the question raised in an announcement from the University of Surrey. "Imagine that instead of flowing in one direction — from past to future — time could flow forward or backward due to processes taking place at the quantum level."...

This is the thought-provoking discovery made by researchers at the University of Surrey, as a new study reveals that opposing arrows of time can theoretically emerge from certain quantum systems. This discovery provided a mathematical foundation for the idea that time-reversal symmetry still holds in open quantum systems — suggesting that time's arrow may not be as fixed as we experience it... And their research reminds readers that "the fundamental laws of physics in both the classical and the quantum realms do not manifest any intrinsic arrow of time.

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