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The soundwaves can play a key role in new types of quantum computers.


Superconduction can make by using pressure. 


Soundwaves, or acoustic waves can lock the material in a static position. So they can make the same thing as other pressure impulses. They can press the material in the superconducting form. And in that model, there is the possibility to make superpositions and entanglements in that material that those pressure impulses lock on the stable position. 

In that model, the acoustic waves are making a similar thing. As cooling the material. It freezes material in a position where is as small oscillation as possible. And the idea of superconduction is that the oscillation is removed from the material by putting its atoms so close to each other as possible. 

Acoustic waves can form virtual particles. The thing is that two standing acoustic waves can be put into superposition and the requirement about the success of that superposition is that those standing waves have identical oscillation. Those standing waves act like all other particles and virtual particles. When sound waves hit each other, they are rising energy levels at that point. 

The reason why most quantum computers use photons to make superposition is that individual photons are identical. The thing that makes a spectrum are photon groups, not single photons. The system stabilizes single photons in the static position. And then it makes the superposition and entanglement possible. 

In some visions, the quantum computer can use waves between oscillating atoms. In that model, the system makes a superposition in those standing waves between atoms. Those waves act as virtual particles the problem is that those standing waves reflect electromagnetic waves from them.  Those atoms can push atoms away from each other. 



But acoustic "photons" called "phonons" can make the same thing as photons. 


Acoustic waves can make phonons. Phonons are quantum phenomena where acoustic waves are acting like photons. The key element in the phonon is that the central point of atoms doesn't move and the motion happens by moving the electron shell. Or otherwise saying it's the acoustic oscillation in the quantum system. Phonon is a quantized soundwave and photon is a quantized electromagnetic wave. 

Wikipedia says about phonons: "In physics, a phonon is a collective excitation in a periodic, elastic arrangement of atoms or molecules in condensed matter, specifically in solids and some liquids. A type of quasiparticle, a phonon is an excited state in the quantum mechanical quantization of the modes of vibrations for elastic structures of interacting particles. (Wikipedia, Phonon)

Phonons can be thought of as quantized sound waves, similar to photons as quantized light waves. However, photons are fundamental particles that can be individually detected, whereas phonons, being quasiparticles, are an emergent phenomenon. (Wikipedia, Phonon)

The acoustic quantum computer uses phonons for making the needed quantum entanglements. These kinds of systems are making it possible to create a new type of small, portable quantum system. 


https://www.sciencealert.com/a-new-kind-of-quantum-computer-could-be-built-on-the-strange-physics-of-sound-waves


https://en.wikipedia.org/wiki/Phonon

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