Quantum entanglement erases entropy and disorder

Quantum entanglement happens when two or more particles are described by the same quantum state and by the same wavefunction.

Bringing all particles in the same quantum state gives rise to Bose-Einstein condensates.

Fermions cannot belong to a Bose-Einstein condensate individually because they have half-integer spin.

But when fermions pair they form composite bosons with integer spin that can belong to a Bose-Einstein condensate.

Entropy and disorder exists in a quantum system when every particle has a random quantum state and each particle has its own wavefunction.

If we bring all the particles in the same quantum state by making their wavefunctions (associated waves) interfere, we erase the entropy and the disorder in the system.

And as I have shown in my previous post, interference with high resolution can only be obtained by the use of diffraction gratings which are arrays of multiple slits (transparent strips alternating with opaque strips) because the intensity maxima will be narrower and sharper.



(photo source: http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/mulslid.html)

These are diffraction gratings for light, with their slit spacing up to the limit of 1.6 micrometers or diffraction gratings for sound, with the slit spacing up to the limit of 1 millimeter.

The interference patterns from the diffraction gratings are systems of photons or phonons with a total entropy of zero.

The entropy of matter can be erased by absorbtion of entangled light or entangled sound at one of its resonant frequencies.

This is in contrast with classical removal of matter entropy, by compression and cooling near to absolute zero.