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Black holes are still a mystery to astronomers. Not only do they suck in everything around them, but they can also deform the space-time continuum. When stretched, they form a tiny incision at the bottom. Many astronomers would like to know what lies behind this section. Einstein and his colleague Rosen suggested that the rupture of one black hole is linked to the rupture of another. The supposed connecting thread was named the Einstein-Rosen bridge. Although nothing like this has been observed in the universe, this theory involves solving the problem of general relativity by combining black and white hole models.
Nikodem Poplawski, a theoretical physicist at Indiana University, has proposed a scenario for the origin of our universe in a hole, also called the Einstein-Rosen bridge. Poplawski used Euclid's coordinate system — isotropic coordinates — to describe the gravitational field of a black hole, and simulated the radial motion of a large particle in a black hole.
After studying the motion of a particle at the boundaries of two types of black holes — Einstein-Rosen and Schwarzschild, Poplawsky noted that motion within the hole itself can only be studied by experienced people by way. Astronomers don't see what's going on in a black hole, and they can only study the behavior of particles if they hit it themselves.
According to Poplawski, this would be possible if our universe were larger than ours inside a black hole that exists in the universe. If a black hole could form as a result of the gravitational rupture of matter, then the reverse process is also possible. This process can be described as a white hole explosion: matter emerging from the black hole's radius is like an expanding universe.
Theoretically, a white hole is connected to a black hole through the Einstein-Rosen bridge, and is hypothetically the temporary opposite of a black hole. In his work, Poplawsky suggested that all black holes have Einstein-Rosen bridges, each with its own universe inside, which formed at the same time as the black hole.
“It turns out that our universe could have formed inside a black hole in another universe,” Poplawsky said.
If we continue to further study the gravitational destruction of the particle and apply them to the study of other types of black holes, perhaps in the theory of the origin of the universe the Einstein-Rosen black hole will have fewer contradictions than the previous ones. For example, many problems and inconsistencies arise with the Big Bang theory, and the theory of information loss near the radius of a black hole, which states that all information about matter is lost when it goes beyond the radius of the black hole.