(Fig.1) ↓ Quantum mechanics is fantasy.
Quantum mechanis has given up clarifying true microscopic mechanism.
Instead, they focus on fabricating fictitious unreal quasiparticle with adjustable fake mass and charge to explain physical macroscopic phenomena.
This paper tries to explain some classical magnetism in material using unreal quasiparticles, soliton and magnon (= spin-wave ? ).
This research also uses fictitious phonon quasiparticle.
Quantum mechanics is useless, cannot give clear figure or shape to each (quasi)particle, except nonphysical math symbol ( this p.3 )
(Fig.2) ↓ Ejected electron = unreal Dirac quasiparticle ?
This research uses unreal massless Dirac quasiparticle.
It is unreasonable to detect electrons ejected by light and call it fictitious Dirac quasiparticle ( this p.5 )
So the present quantum mechanics tries to explain various phenomena using fictional quasiparticles, which is why it remains useless forever.
(Fig.3) ↓ Misleading expression about fantasy computer.
Quantum computer using fantasy parallel worlds is scam where all corrupt academia and corporations collude to defraud taxpayers of money.
The media always use very misleading expressions like "those quantum computers will be able to solve problems beyond existing computers."
The future tense "will" means quantum computer is still unrealized despite very long time researches.
Physicists should stop cheating governments of taxpayers' money, by deliberately using deceptive words.
(Fig.4) Light → positron + electron at rest ?
Antiparticle is too unstable, cannot be separated from other particles, so we naturally think rare antiparticle doesn't exist, confused with some other particles.
PET doesn't need antiparticle, because positron emission can be replaced by electron capture.
Producing a pair of particle and antiparticle is unscientific, because their momentum is Not conserved.
When a light changes into a pair of rest particle and antiparticle and, uses up all its energy, the light momentum cannot go anywhere.
They try to adopt very unreasonable idea that only momentum is moved to other nucleus without giving it kinetic energy !
As you see, all about antiparticle are unreal.
2018/5/4 updated. Feel free to link to this site.