3 ms·
So is a permanent magnet also quantum matter? Classical physics says the net magnetization of a solid is zero.
by castratikron 6y ago
So is a permanent magnet also quantum matter? Classical physics says the net magnetization of a solid is zero.
- djaque 6y agoThat is a good point, because the way I was taught it is that ferromagnetism is one of the few purely quantum mechanical phenomena we see in everyday life. However, people don't really refer to it as "quantum matter". I think you could argue that people have had some sort of heuristic description since long before quantum was known about.