MIT researchers find noisy time loops send messages to the past more efficiently
Updated
Updated · Popular Mechanics · May 6
MIT researchers find noisy time loops send messages to the past more efficiently
5 articles · Updated · Popular Mechanics · May 6
The team, led by Seth Lloyd, reported in Physical Review Letters that a closed-timelike-curve-like quantum channel could outperform equally noisy forward-time communication.
Using Interstellar as a model, they argued backward messaging works when a sender can rely on memories of how the message was decoded in the past.
The researchers previously simulated a tiny time loop with entangled photons and now plan photon experiments to test noisy loops, though real spacetime-bending time travel remains far beyond current technology.
Why is sending quantum data to the past theoretically more efficient than sending it to the future?
If communication with the past becomes reality, does this prove our future is already unchangeably written?
Could new physics allow us to sidestep the grandfather paradox and actually alter historical events?