Quantum mechanics got a kick start in 1926 with Schrödinger’s wave equation for the Hydrogen one electron, with the wave function as a mimimiser over of the* total energy*

where , under the normalisation

- .

The condition of minimality with respect to variations of takes the form of an eigenvalue problem

for the Hamiltonian

with a minimal eigenvalue and

- .

The ground state can be computed analytically and is given by

- .

The total energy to be mimimised is the sum of *potential kernel energy*

and what is normally referred to as *kinetic energy,* bur rather has the form of *elastic compression energy*:

The model thus involves two types of energy of a distributed charge density; potential energy and elastic energy and as such has the form of a classical model of continuum mechanics.

The whole conundrum of quantum mechanics is how to generalise the model to more than one electron. stdQM gives one answer and realQM another.

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