Timeline for What is a quantum number in a quantum field theory?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 26, 2018 at 11:56 | comment | added | Ryan Thorngren | @SRS both of them are quantum numbers. | |
| Sep 26, 2018 at 7:20 | comment | added | SRS | @RyanThorngren There are two independent Casimir operators for $SU(3)$. Which one are you referring to? | |
| Sep 26, 2018 at 7:16 | comment | added | SRS | But color is often referred as a quantum number in literature. Right? In fact, assignment of different color quantum numbers to quarks in a proton is such that the Pauli exclusion is respected. @knzhou | |
| Sep 24, 2018 at 19:04 | comment | added | Ryan Thorngren | @SRS Color charge is also a quantum number, the point is that "red" is just a vector inside a particle color charge, namely the fundamental representation. The operator is the Casimir of the Lie algebra. | |
| Sep 24, 2018 at 19:02 | comment | added | knzhou | @SRS Electric charge is a quantum number. | |
| Sep 24, 2018 at 18:48 | comment | added | SRS | So color quantum number or electric charge are not quantum numbers?@knzhou | |
| Sep 24, 2018 at 18:33 | history | answered | knzhou | CC BY-SA 4.0 |