Whenever we look at the beautiful sky of night, we see luminous and brilliant points that are flashing, and if we focus on each of them with a strong telescope and observe carefully, we will perceive that any point consists of tens or hundreds of galaxies, in which in any galaxy there are billions of stars and planets. It can be said that large worlds can exist in a point that is tiny from the observer's point of view.If we reach the dimensions of about 10^{-50}m and enter a photon which is the smallest, fastest, and lightest object in the world, a photon can be perceived like a solar system. In fact, everything that seemed tiny can be a big world.

As you know the unit of length is calculated in light years in skies, and in meters and kilometers on the ground. According to the Big Bang phenomenon, which is the beginning of the universe, its calculations are as follows:

Where m_{T} is the total mass of universe, n is the number of photon, m_{p}, r_{p}, V_{p} and ρ_{p} are the mass, radius, volume and density of the photon and r_{BB}, V_{BB} and ρ_{BB} are the radius, volume and density of the Big Bang sphere.

According to the data, it can be said that if the existing sphere at the moment of the Big Bang was made of photons, by such a volume and mass, it is by far the information obtained for the Big Bang. In other words, the photon is not the desired particle that could have formed the Big Bang sphere.

So it is possible to define a sub-photon which is:

of a photon in terms of radius.

According to the calculations and definitions, it can be proved that there is a particle whose radius is one billionth of a photon's radius and its volume is 10^{-27} of the photon's volume.

photon
sub-photon
Universe building block
Superstring theory

Considering that the density of the Big Bang obtained by using photons is not more than and the radius of the Big Bang sphere will be from the Earth to Jupiter. So, it could not be a suitable choice for the Big Bang, because it does not meet the definition that we expect for the Big Bang. In order to achieve our desired goal, we define a particle whose radius is one billionth of a photon.

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