If there are wormholes, and it remains a big in case, they might permit emails from the opposite side, but just briefly. If you fall by having a wormhole as well as travel a huge distance across the world without seeing your loved ones or friends, it’s unlikely you’ll ever see them again. At least you could tell them you really like them before you go. Who claims the universe is uncaring and cold?
Obviously this is all somewhat speculative since we don’t know whether wormholes exist. That has not stopped physicists from devoting a great deal of their intellectual bandwidth to considering the way passages between different regions of the space time continuum would likely operate if they had been genuine.
In Physical Review D, Professor Ben Kain along with colleagues at the College of the Holy Cross, Massachusetts, explore the issue of information transmission through wormholes when mass has gone the opposite way.
Following decades of discussion, Professor Mike Morris and Nobel Prize Winner Kip Thorne published a paper in 1988 which convinced many (but not all) physicists which general relativity theoretically enables matter to get through wormholes, coming out somewhere else in this or other universes. Since that time, discussion has shifted to issues including if wormholes would likely involve forces that will ruin any living thing that passed through them, and also if 2 way travel is possible. Massless information transfer is likewise a favorite subject.
One of the primary features of wormholes modeled in works such as this is that they seem to be short – term. The “throat” of the wormhole will close after a relatively short time (at least for the age of the universe) and prevent further passage. In fact, in the most thoroughly studied wormhole, referred to as Ellis-Bronnikov-Morris-Thorne wormholes, the passage of matter through the opening automatically triggers collapse. This may be too much like the fantasy of a science fiction writer, but it’s what those who have built on Morris and Thorne’s work have discovered.
Consequently, anyone going by way of a wormhole will probably not be able to go back or tell the planet about it, which makes it uncomfortable close to the representation of the afterlife.
Kain and co-authors argue that this calls for a great deal of complicated math, but that is not quite right. An Ellis Bronnikov-Morris-Thorne wormhole’s throat is going to probably collapse once a pulse of material passes through, but there is time to send out a light signal before this happens.
Preferably, the mission that gets through the wormhole could give some indication of what they discover. Kain believes this might happen, though he does not expect astronauts to take action. “Just the capsule along with a video camera. “Everything is automated,’ he explained to Science News. Furthermore, Kain doesn’t rule out the potential for other types of wormholes that remain open long enough to make a return journey, although how this may be the case has yet to be modelled.
In case we come across evidence for the existence of wormholes, conclusions such as this become much more interesting. Which might seem a long way off, but as a report published last year showed, we could possibly have seen them already. As reported by the authors of this paper, a wormhole as well as a black hole would be sufficiently alike from the right angle, so the two black holes we’ve found in detail could both be wormholes, so we would not know.
The paper is published in Physical Review D.
