Speaker
Description
Entropy considerations (at least morally) require reliable “state counts”.
Canonical quantization of gauge potentials introduces “too many particle
states”. They are eliminated by introducing even more unphysical states
(“ghosts”). In order to prevent confusing state counts, an approach with
the correct number of states from the outset is desirable.
I will not address “entropy” any further. The above remark is just my
pretext to present a construction of Standard Model particle interactions
on the physical Hilbert space, which is of interest for its own sake. It
selects the actual SM interactions without invoking the gauge principle.
Instead, it implies a (hidden) gauge invariance as a feature emerging
from quantum principles, that turns out to be salient for consistency.