A University of Toronto experiment has demonstrated photons appearing to spend a negative amount of time within an atom cloud, a finding that has now cleared peer review and been published in Physical Review Letters. This groundbreaking quantum effect, observed after averaging approximately one million test runs, is explained by standard physics and does not imply time travel. The researchers used phase shifts in a secondary laser beam to measure atomic excitation times, revealing that photons could effectively exit the cloud before entering, a result corroborated by direct atomic measurements. AI
IMPACT This quantum physics discovery has no direct impact on AI operators.
RANK_REASON Peer-reviewed publication of a scientific experiment with novel findings. [lever_c_demoted from research: ic=1 ai=0.1]
- Aephraim Steinberg
- arXiv
- Daniela Angulo
- Griffith University
- Live Science
- Physical Review Letters
- Physics World
- rubidium
- University of Toronto
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