The use of neutral atoms in the quantum computer would be one of the most interesting ideas in the history of quantum technology and especially quantum computers.

The use of neutral atoms in the quantum computer would be one of the most interesting ideas in the history of quantum technology and especially quantum computers. 

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"THIS ILLUSTRATION REPRESENTS TWO ENTANGLED QUBITS, IN WHICH THE QUBITS ARE INDIVIDUALLY CONTROLLED STRONTIUM ATOMS. THE RED SHAPES DENOTE SO-CALLED OPTICAL TWEEZERS THAT HOLD ONE ATOM EACH. EACH STRONTIUM ATOM HAS TWO OUTER ELECTRONS, CHARACTERISTIC OF ALKALINE-EARTH ATOMS. ONE ELECTRON BELONGING TO THE ATOM PICTURED AT LEFT IS IN A LARGE ORBITAL, REFERRED TO AS A RYDBERG STATE. WHEN THESE TWO ATOMS ARE ENTANGLED, EITHER ATOM COULD OCCUPY THE RYDBERG STATE; THEY ARE IN WHAT QUANTUM PHYSICISTS CALL A SUPERPOSITION OF BOTH POSSIBILITIES. CREDIT: CALTECH" (https://scitechdaily.com/caltech-innovations-using-alkaline-earth-atoms-pave-the-way-for-new-quantum-computer-designs/)

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The use of atoms in quantum computers is one way to create qubit. The thing is that making the atom rotate there is the possibility to create the photon source, which can send photons by very high accuracy. In the tests, the strontium-atoms are in the superposition with each other. That means that their electrons or sharper saying two outer electrons would orbit the nucleus of the atoms with the same period. 

In the image above is introduced the idea of this thing, and it bases in the Rydberg position. The atom in the left has one electron in the larger orbit, which is synchronized with the most out electron of the right atom. When those electrons are in one line they can transmit the data between them. 

Source:

https://scitechdaily.com/caltech-innovations-using-alkaline-earth-atoms-pave-the-way-for-new-quantum-computer-designs/

Image: https://scitechdaily.com/caltech-innovations-using-alkaline-earth-atoms-pave-the-way-for-new-quantum-computer-designs/

Use of neutrons as the qubit bases the same idea. 

The thing is that the neutron can form the neuron star if they are stressed with electromagnetic radiation. That radiation would make neutrons rotate very fast, and they would send the radiation like large scale neutron stars. When the stress of the electromagnetic radiation will decrease the rotation of the neutron will also decrease, and the level of radiation will decrease. So if the rotation speed of the neutrons will be adjusted with very high accuracy that thing would make it possible to use the neutrons as the photon source in quantum computers. 

But there is one more fascinating idea for creating qubits, and that thing is making neutron acting like a miniature neutron star. If researchers would create the neutron what is hovering in the magnetic field, that thing would make it possible to make them rotate like neutron stars, and in that case, the poles of the neutron would send the radiation. And that radiation would be detected by using the photon detectors.