If people wish to send a message through a wormhole, people better make it brief.
Under certain circumstances, a message could be passed through a theoretical wormhole connecting black holes in numerous universes, physicists have found in the new research. Unfortunately, their results show that only a tiny quantity of information (measured in quantum bits, or qubits) could be exchanged.
Doing this requires that both universes and the connected black hole have a sure kind of physics and geometry. For example, the traversable wormhole can be possible only when space-time had a negative curvature. Meaning people can visualize space-time as an infinite saddle, where if two creatures tried to walk in parallel paths, they would be moving away from each other.
Scientists have known that, in theory, this specific universe setup allows information to pass via wormholes, and so they previously made some estimates to determine how much data could travel in this way.
In the new research, Van Leuven and his colleagues studied the traversable wormhole using the geometry of space-time as described by Albert Einstein’s theory of general relativity. The mathematics used to describe the scenario was completed in a two-dimensional universe for simplicity, but it should also hold for a 3D universe, like our own.
The results confirmed that only a few bits of information might be passed through the wormhole at a timeless than other methods had found. They also discovered that sending messages through the wormhole would change the black holes. The sending black hole would increase in mass, and the receiving black hole would decrease in mass, with each message sent. With the first message, the receiving black hole would lose about 30% of its mass, and over subsequent messages, the black gap would disappear. Additionally, each following message would decrease in size, such that the message would eventually hold no information.
Van Leuven and other scientists are continuing to check a wide range of setups and rules, both similar and dissimilar to those of our universe, that might allow the transmission of extra data. Currently, such wormholes and related black holes are entirely theoretical, but scientists think it’s not entirely impossible that they could be created or manipulated by some form of an advanced civilization.