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Scientists from the Institute of Space Sciences of the University of Barcelona have made a breakthrough in the study of black holes - scientists have proposed a model of their formation without singularities. Fresh calculations show that black holes can form solely under the influence of gravity, without the need for the involvement of so-called exotic matter, which was previously considered a key element for avoiding singularities, writes SciTechDaily
Theoretical physics has long faced a problem: at the center of a black hole, according to the General Theory of Relativity, a point of infinite density forms — a singularity — where the known laws of physics cease to apply. A new model, published in the journal Physics Letters B, claims that adding quantum gravitational corrections avoids this problem.
The research is based on a modification of Einstein's equations that naturally follows from quantum gravity. This allows us to obtain so-called regular black holes, which do not have a singularity at the center. The scientists also found that their approach is consistent with the laws of thermodynamics, which makes the results even more convincing..
Exotic matter—a theoretical type of matter with negative energy—has previously been considered a possible mechanism that could eliminate singularities. However, it has not been detected in nature, making such models speculative. New research shows that singularities can be avoided without the need to introduce additional types of matter.
The next step in the research will be to test this model for ordinary four-dimensional space-time. The scientists also plan to investigate the possible astrophysical manifestations of such black holes, in particular how they affect the radiation and the behavior of matter falling into them. If the model is further confirmed, it could fundamentally change the research understanding of the nature of black holes and the evolution of the Universe.
Scientists from the Institute of Space Sciences of the University of Barcelona have made a breakthrough in the study of black holes - scientists have proposed a model of their formation without singularities. Fresh calculations show that black holes can form solely under the influence of gravity, without the need for the involvement of so-called exotic matter, which was previously considered a key element for avoiding singularities, writes SciTechDaily
Theoretical physics has long faced a problem: at the center of a black hole, according to the General Theory of Relativity, a point of infinite density forms — a singularity — where the known laws of physics cease to apply. A new model, published in the journal Physics Letters B, claims that adding quantum gravitational corrections avoids this problem.
The research is based on a modification of Einstein's equations that naturally follows from quantum gravity. This allows us to obtain so-called regular black holes, which do not have a singularity at the center. The scientists also found that their approach is consistent with the laws of thermodynamics, which makes the results even more convincing..
Exotic matter—a theoretical type of matter with negative energy—has previously been considered a possible mechanism that could eliminate singularities. However, it has not been detected in nature, making such models speculative. New research shows that singularities can be avoided without the need to introduce additional types of matter.
The next step in the research will be to test this model for ordinary four-dimensional space-time. The scientists also plan to investigate the possible astrophysical manifestations of such black holes, in particular how they affect the radiation and the behavior of matter falling into them. If the model is further confirmed, it could fundamentally change the research understanding of the nature of black holes and the evolution of the Universe.
