October 1st, 2024

Evidence of 'Negative Time' Found in Quantum Physics Experiment

Researchers at the University of Toronto found evidence of "negative time" in quantum experiments, suggesting photons can exit materials before entering, challenging traditional time interpretations without contradicting relativity.

Read original articleLink Icon
Evidence of 'Negative Time' Found in Quantum Physics Experiment

Researchers at the University of Toronto have discovered evidence of "negative time" in a quantum physics experiment involving photons and ultracold rubidium atoms. The study, led by Daniela Angulo, demonstrated that photons can appear to exit a material before they actually enter it, suggesting that time can take on negative values in the quantum realm. The experiment built on earlier work that examined atomic excitation, where photons excite electrons in atoms, causing a time delay in the light's transit. The team found that photons could cause atomic excitation without being absorbed, and when absorbed, they seemed to be reemitted almost instantaneously, leading to the concept of negative dwell time. This phenomenon does not contradict Einstein's theory of relativity, as it does not involve the transmission of information faster than light. The findings challenge traditional interpretations of time in quantum mechanics and raise questions about the nature of light and its interactions with matter. The results have not yet undergone peer review but have sparked interest in further exploration of the implications of negative time in quantum physics.

- Researchers found evidence of "negative time" in quantum experiments with photons.

- Photons can appear to exit a material before entering it, suggesting time can have negative values.

- The study challenges traditional interpretations of time in quantum mechanics.

- Findings do not contradict Einstein's theory of relativity regarding the speed of light.

- Further exploration of the implications of negative time in quantum physics is anticipated.

Link Icon 1 comments
By @SenHeng - 7 months
I'm not smart enough to parse this experiment, is it saying they've detected effect before cause?