Just as the ocean waves form our shores, the pulsations in space-time may have once put the universe in an evolutionary path leading to space, as we see it today.
A new theory implies gravitational waves – not hypothetical particles called inflatonins – encourage the early expansion of the universe and the redistribution of matter in them.
“For decades, we have been trying to understand the early moments of the universe, using models based on elements that we have never watched,” explains the first author of the document, theoretical astrophysicist Raul Jimenez of the University of Barcelona.
“What makes this proposal exciting is its simplicity and verification. We do not add speculative elements, but more recently demonstrate that gravity and quantum mechanics may be sufficient to explain how the structure of space arose.”
Related: Dark matter may have existed before the Big Bang, the study finds
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We do not know for sure how the largest stages of the universe developed after the Big Bang about 13.8 billion years ago. All scientists at this point can come up with theories that respond to the physics of the universe we observe.
These theories are quite good, but there are clear disadvantages. Get the JWST opening for a large number of massive galaxies in the universe than cosmologists expected, for example.
At the moment, the timeline of the evolution of the universe includes a period of rapid expansion or inflation, immediately after the Big Bang. From a single, one-dimensional point of endless density-solicity, the mathematical description of the universe just before the big explosion-the neat quickly inflates, swelling with hot plasma soup that cooled to form matter.
Inflaton is a speculative particle or quantum field that scientists use to explain cosmological inflation and surprising smoothness of space. In theory, the particle drives the rapid expansion of the universe, while allowing variations in the density of plasma soup, which are eventually condensed in black holes, galaxies, stars and all other pieces and beans of matter scattered throughout the universe.
Despite our best efforts, however, physicists have not found other evidence that supports the existence of inflammatory. Jimenes and his colleagues wanted to know if there was another way – if we could explain the early evolution of the universe, using different parameters that rely less on speculative elements.
They began with a very simple model of the true universe, corresponding to the general relativity and current observations of the expansion of the universe called Siter Space. Within this field, quantum fluctuations in space-time-so, gravitational waves-can be generated by a type of turbulence called tensor disturbances.
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Gravity waves are thought to fill the universe today. They are the pulsations generated in space-time through massive interruptions. Those we can currently find are generated by clashes between massive, dense objects such as neutron stars and black holes, but physicists believe that the whole universe is ringing with a constant background against the background of gravitational waves, too large to find (still).
Researchers have found that gravitational waves generated by tensor interference in their space-time model can create variations of density in primary plasma themselves, as well as stimulate the early expansion of the universe.
In the end, these variations would create lumps dense enough to collapse under gravity and form the seeds of the early universe – the first stars and galaxies and black holes.
This is such an elegant solution and eliminates the reading of hypothetics as the driving force behind the early evolution of the entire universe, although additional work is needed to check, of course.
Nevertheless, “our proposed mechanism could eliminate the need for a model -dependent scenario: the choice of a scalar field, such as inflation, to stimulate inflation,” the researchers write.
Their work has been published in ExaminationS