Magnon

1930

Magnon

The book of science

Tom Sharp


Felix Bloch electromagnetism

Magnon

Misalignments

The vortex


Quantum theory shows that particles such as photons, protons, and electrons are excitations of quantum fields. From a great distance, we distinguish a star from a planet because the star has a point-like appearance, whereas a planet, in the telescope, has a diameter.

I should perhaps not be bringing Pound’s vortex into the context of the magnon, since it is more analagous to the roton quasiparticle.

See also in The book of science:

Readings on wikipedia: