Geometric Bound on Information Transfer Through Wormholes
Published:Dec 28, 2025 13:45
•1 min read
•ArXiv
Analysis
This paper establishes a fundamental geometric constraint on the ability to transmit quantum information through traversable wormholes. It uses established physics principles like Raychaudhuri's equation and the null energy condition to derive an area theorem. This theorem, combined with the bit-thread picture, provides a rigorous upper bound on information transfer, offering insights into the limits of communication through these exotic spacetime structures. The use of a toy model (glued HaPPY codes) further aids in understanding the implications.
Key Takeaways
- •Proves a geometric bound on information transfer through semiclassical traversable wormholes.
- •Uses an area theorem derived from Raychaudhuri's equation and the null energy condition.
- •The initial minimal throat area determines the upper bound on information transfer.
- •Employs a toy model (glued HaPPY codes) for illustration.
Reference
“The minimal throat area of a traversable wormhole sets the upper bound on information transfer.”