Physicists simulate sending quantum light particles into the past
Could time travel soon become a reality? Physicists simulate sending quantum light particles into the past
- University of Queensland scientists simulate photons moving through time
- They showed how two wormhole-travelling photons might behave
- Time-travel in the quantum world seems to avoid famous paradoxes
- The experiment shows bizarre behaviour of such quantum particles
- But on larger scales time travel still remains implausible, say researchers
If a time traveller went back in time and stopped their own grandparents from meeting, would they prevent their own birth?
That’s the crux of an infamous theory known as the ‘grandfather paradox’, which is often said to mean time travel is impossible – but some researchers think otherwise.
A group of scientists have simulated how time-travelling photons might behave, suggesting that, at the quantum level, the grandfather paradox could be resolved
