Wormholes, like black holes, appear in Albert's equations of general relativity
The curvature of spacetime determines howsuch objects move in it - spaceships and planets, as well as light. "In theory, spacetime can be bent and bent without massive objects," explains Blasquez-Salcedo, one of the study's authors. In this scenario, the wormhole will be an extremely curved region in spacetime. It resembles two interconnected funnels and connects two distant points in space, like a tunnel. “From a mathematical point of view, such a shortcut would be possible, but no one has ever observed a real wormhole,” the physicist emphasizes.
What's more, such a wormhole would be unstable.In one of them, it will instantly collapse into a black hole , an object in which matter disappears, and it is no longer possible not to see it .The communication it will provide with other places in the universe will be broken.Previous models suggest that the only way to keep the wormhole open is to use an exotic form of matter that hasnegative mass, or in other words, weighs less than zero and exists only in theory .However , Blasquez-Salcedo and his colleagues demonstrate in a model that wormholes can be traversed without such materials.
The researchers chose a relatively simple"Semiclassical" approach. They combined elements of general relativity with elements of quantum theory and the classical theory of electrodynamics. In their model, they view certain elementary particles - electrons and their electric charge - as matter that must pass through a wormhole. They chose the Dirac equation as a mathematical description. This is a formula that describes the probability density function of a particle according to quantum theory and the theory of relativity as the so-called Dirac sea.
It is the inclusion of the Dirac field in their modelallows the existence of a wormhole that matter can cross. Provided that the ratio between the electrical charge and the mass of the wormhole exceeds a certain limit. Besides matter, signals - like electromagnetic waves - can also travel through tiny tunnels in spacetime. The team's postulated microscopic wormholes do not appear to be suitable for interstellar travel. Moreover, the model will require further refinement in order to find out whether such unusual structures can really exist. “We think wormholes can also exist in a holistic model,” concludes Blazquez-Salcedo.
Read more
Physicists have created an analogue of a black hole and confirmed Hawking's theory. Where it leads?
Sea slugs cut off their head to regenerate a new body
Abortion and science: what will happen to the children who will give birth
The Dirac Sea is a speculative model of the vacuum that explains the existence of antiparticles in fermions. Developed by Dirac for the case of an electron after the discovery of the Dirac equation.