The Earth’s internal structure explained by the view point of the condensed matter physics

The change of circumstance on the substance affects to the electronic state of substance. The resultant electronic state can be a representative of the phenomenon. Property of the substance are explained in the electronic structure and the structure is expressed by short range force.
Although it is difficult to calculate interactions in such condensed matter, in the deep interior of the Earth, the cohesive force in the substance becomes strong and electronic structure will change.
The pressure increases and size of substance decreases. The reduction of size accompanies the downsize of wavelength on the substances. It causes increase of the potential energy and the kinetic energy of the material in equilibrium.
The pressure on a substance increases according to increase of the depth of the Earth. The potential energy of electron for the cohesion becomes large by contraction on the substance of inner Earth. When it comes to the state of lower energy, the substance releases the extra energy.
By the way, the substance in a limited area is heated by a meteorite crash. But the energy of the heat on the substance is absorbed by the expansion at immediately after. Although the energy of collision is able to change the form of substance, the main part of the heat source of inner Earth is given by accumulation of the substances.The steady-state temperature in center of the Earth is 7000℃ at the highest. It is corresponds to the electronic states of 0.63 eV. The resultant electronic state is able to describe the circumstances.
The interactions among electronic orbits increase according to increase of the depth in the Earth. The state of the substance is adapted to the situation by replacement of adjacent atoms caused by thermal motion. The interactions among those electronic orbits are capable to produce lower energy state. The state with the low energy produces an extra energy. The extra energy contributes to the heat source of the inner Earth.
The energy of the heat together with substance is transported from the place with high temperature. That is the mantle convection. The mantle that is beneath the oceanic crust carries the heat more than the mantle of the continental plate. So, the magma emerges onto the ocean floor.
The core of Earth's interior structure can be explained depending on the nature of the substance. The liquidity with good electric conductivity in the outer core of the Earth is explained by the degenerated state of electron that is occurred by a quantum resonance among overlapped orbits. The degenerated state of electron changes to the lower symmetry according to Jahn-Teller-Theorem. This state of the lowest energy corresponds to the solid state of inner core that makes possible to propagate a transverse wave.