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The paper introduces Planck scale into the Newtonian law of gravity for the model simplification. The terms of Newtonian gravitational force can be separated into two parts, namely Dark Matter and Dark Energy respectively. They are inverse relation to the distance. In the very early Universe, the novel model gives the sum “attractive force” of all matters in the cosmos. It indicates that Inflationary Universe firstly and then Universe expands slowly on condition that the accelerated velocity is slowing down for ever. In the galaxy scale, the paper gets the local “attractive force” of different galaxies by using the novel interaction model. It shows the intercommunity property in the formation process of different galaxies, where the matter suppresses firstly, sharp inflates secondly, slowly expands finally. Otherwise, the novel interaction model solves the problem about the flat rotation curves of galaxy by considering the change of the mass ratio of Dark Energy and Dark Matter. All results of simulation show that the core of our Universe is hollow now.

The theoretic physicists consider that quantum gravity is holy land in the modern physics. In fact, the physicists always try to unify quantum gravity with General Relativity which is the most famous theorems in the twentieth century. In the hardship work, they virtually put forward the concepts from Superstring to loop quantum gravity. In the micro-scale, all quantum gravity theorems predict that approaching to the Planck scale, the classical picture of space-time break down, with space-time becoming somewhat “fuzzy” (or “foamy”) [

We realize the need of the Dark Energy and the Dark Matter in the Universe. So in the Solar system, the Dark Energy and the Dark Matter should be in existence in a mysterious mode. In fact, measurements of non-circular motions in the Milky Way have shown that there is actually very little room for an axisymmetric distribution of Dark Matter inside the Solar radius [

Thus, supposing that ordinary atoms (also called baryons) are composed of Dark Matter and Dark Energy in the Universe the mass of Baryons originated from the coupling between Dark Matter and Dark Energy. Dark Matter and Dark Energy are the most elementary units in the Universe. So we can directly modify the Newtonian laws of gravity by introducing Planck scale for the model simplification. Then, the term of Newtonian gravity is separated into two parts. Considering the description of Dark Matter and Dark Energy, the positive part is corresponding with Dark Matter, and the negative part is corresponding with Dark Energy. The paper sets up a novel interaction model of Dark Matter and Dark Energy. Using the new model, the paper studies the characteristic property of the gravity in the very early Universe.

Now, we introduce Planck scale into the Newton gravitational force term, and study the new characteristic property in the interaction presentation.

If

where

as the tuning parameter of scale,

The new gravitational force equation keeps the characteristic property of long range force. And it is applicable in the Solar system. Additionally, it can match the new experimental data in the sub-micrometer range by tuning the parameter

In the paper, the minimum distance is the atom scale

Therefore, the gravitational force equation changes into:

If

If

In this way, the gravitational force term is separated into two parts, namely Dark Matter (DM) and Dark Energy (DE) respectively. They are expressed as follows:

It shows that they are inverse relation to the distance

From the WMAP observation, it shows that the total mass of Dark Energy is more than the total mass of Dark Matter in the Universe now. But what is the mass ratio of Dark Energy to Dark Matter in the very early Universe? From the viewpoint of S. Hawking, quantum fluctuations in the very early Universe may cause incoherence between different terms in the state vector of Universe [

As

So giving that the mass of Dark Matter is m, the mass of Dark Energy is 3m. Taking them into Equation (4), we can get the sum of DM’s gravity and DE’s gravity, as following:

where

So we can calculate the gravity while

When

As the total Universe keep expanding, the ratio of Dark Energy to Dark Matter in the local region must deviate from 3:1. The results of simulation show that the core of our Universe is hollow now. The latter content will discuss the local gravity in the galaxy scale.

To the different ratio of DE/DM, we use the novel interaction model to calculate a series of the local gravity in the galaxy scale (see

As

The sum of DE’s and DM’s gravity is always negative when the ratio of DE/DM is larger than 3:1. It indicates that the repulsive interaction maybe keep the margin of galaxies and accompany with the Universe expansion. It agrees with the small ﬂuctuations in the temperature of the cosmic microwave background (CMB) radiation.

When the ratio of DE/DM is larger than 1:1 and is smaller than 3:1, the sum of gravity is positive in the Planck length. It indicates that the matter in the galaxy suppress firstly and then inflate, and eventually expands. Of course, the different ratios of DE/DM correspond to the different extent. The gravity curves can describe the evolution process of different galaxies. On the other hand, the gravity falls off as

1) The paper sets up the novel interaction model based on the Newtonian law of gravity by introducing the Planck scale. It deduces the gravity formula of Dark Matter and Dark Energy, namely, the rates of change of their momentums.

2) To the early Universe, the numerical results of the novel interaction model point toward the sharp inflationary process of Universe in the Planck scales, and then Universe starts the slow expansion process that the

acceleration velocity is slowing down forever. There is neither the suppression nor vibration in the whole process.

Simultaneously, the Newtonian law of gravity is still applicable in the Solar system.

3) The novel interaction model shows that the evolution process of the very early galaxy is divided into the

three parts: first suppress and then inflate, eventually it expands forever. Specially, the simulation shows that the core of our Universe is hollow now. But the quantity of suppression is absolute disagreement to the different kinds of galaxies, which have the different mass ratios of DE/DM.