31 May 2023

The inflationary theory is a 20th century scientific postulate developed by the American scientist allan guthwho wanted to explain how did the universe origin and how the expansion of it happened. For this, the problems that remained unresolved from the Big Bang theory were taken into account, such as the initial state of matter and the state of uniformity of the universe.

If you are interested in discover how this theory was formulatedits history, its characteristics and who was behind this enormous investigation, here we show you!

What is the inflationary theory?

inflationary theory is a scientific proposal to seek to explain how the universe originated, which mentions that the same arose from an initial explosion known as ‘the Big Bang’, which caused matter to expand through an extreme state of condensation, expelling vast amounts of energy.

According to Alan Guth, this form of energy was what caused a brute force to emerge with the ability to driving the exponential expansion of the universe. However, for this to happen, it was necessary for the universe to be in a state of instability, which occurred thanks to a phase of supercooling.

What is the origin story of inflationary theory?

The theory of cosmic inflation originated in 1981 at the hands of the American Alan Harvey Guth, who was looking to solve the various problems and plot holes that the Big Bang theory had, and ended up managing to develop his own theory. To do this, he based himself on the work of other scientists such as Willem de Sitter, who had demonstrated the existence of the well-known ‘Sitter Space’, which represents the most precise solutions of all Einstein’s field equations that manage to describe the universe. in expansion.

However, Guth did not work alone, since while he was developing his scientific postulate, Demostheness Kazanas he anticipated a certain part of his theory, with which he mentioned to Guth that his explanation of the exponential expansion of the universe succeeded in completely eliminating the particle horizonthus solving one of the main problems of the Big Bang theory.

Years later, he worked with Sato, who mentioned to him that through his theory, remove domain walls. Using this information, Guth produced what is known as the first sketch showing that the ‘early universe’ was trapped in a false vacuum with a high energy density. It should be noted that the American mentioned that this model was impractical and realistic, so he could have certain faults.

Nevertheless, Andrey Linde evaluated this detail at the end of the 20th century, solving it in a model known as ‘slow-turning inflation’. In this, the process did not do a ‘quantum tunneling effect’ from a false vacuum, but on the contrary, it did it through a scalar field that rotated downwards from a mountain of potential energy.

Who created the inflationary theory?

inflationary theory was created primarily by Alan Guth in 1981. For this he was guided during the first years of the works of Willem de Sitter and Alexei Starobinsky. Some time later, the collaboration of Demosthenes Kazanas and Sato turned out to be a fundamental point in establishing the bases of the old inflationary theory.

However, it was thanks to the contributions of Andreas Albrecht, Andrei Linde and Paul Strinhardt that the modern inflationary theory with which we work today was achieved.

Why is the inflationary theory said to be true?

The inflationary theory is considered to be correct because to date has solved almost all the problems about the creation of the universe. It has the scientific point of view and is the one that current experts use to reference new studies or continue delving into certain details of it.

This theory has not only been in charge of correcting the plot holes that the Big Bang theory had, but also plays an important role in resolving anisotropy, heterogeneity and curvature that has the space

What are the characteristics of inflationary theory?

  • The main characteristic of the inflationary theory is that it is based on the explanation of the expansion of the universe through a exponential mathematical model.
  • It is based on big Bang Theory, using this big bang as a reference for the origin of inflationary energy. This was what allowed the universe to start a slow and gradual expansion phase of growth.
  • The theory is based on the inflatona particle thought by Alan Guth that represents a mediating particle that could be part of the Higgs field.
  • Based on this, the only question that the inflation theory of the universe has not yet been able to solve was defined, which is: “Where does the inflaton originate??”.
  • It is considered that the primal energy that arose from the big bang was thermal energy.
  • This theory has been instrumental in resolving the anisotropy, heterogeneity, and curvature that is present in space.
  • To explain one of the phenomena present in the inflationary theory, use is made of the “no hair theorem“. This explains why the universe expands by a giant factor during inflation.
  • Inflation does not occur in a universe that is symmetrical completely, but there need to be some weak quantum fluctuations in the inflator.
  • From the works of the Russian cosmologist Andrei Linde, in 1892, a new hypothesis of the inflationary theory began to be developed. It mentioned that inflation is, in fact, a process that occurs naturally.
  • Some scientists, by denying that the Big Bang was the beginning of the universe, do not agree that inflationary theory be the origin of the universe. On the other hand, they consider that it was only the beginning of an aeon.

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