Timeline for Are fixed points of RG evolution really scale-invariant?
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Mar 2, 2018 at 13:44 | vote | accept | gj255 | ||
| Mar 1, 2018 at 21:11 | history | edited | knzhou | CC BY-SA 3.0 |
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| Mar 1, 2018 at 19:41 | comment | added | knzhou | @gj255 Yes, and this is exactly what happens at, e.g. the Wilson-Fisher fixed point. There is a mass term in the Lagrangian, but after renormalization the mass of the quantum particles is exactly zero! | |
| Mar 1, 2018 at 19:38 | comment | added | gj255 | Your last sentence is particularly interesting. Are you saying that just as theories with no scales in the Lagrangian can nevertheless develop a scale in the quantum theory (as in QCD), so theories with scales in the Lagrangian can lose that scale in the quantum theory? | |
| Mar 1, 2018 at 14:32 | history | answered | knzhou | CC BY-SA 3.0 |