Timeline for Contribution of a second-order Feynman diagram for the one-particle Green function
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 17, 2019 at 19:25 | vote | accept | AlfredV | ||
| Jul 15, 2019 at 10:40 | review | Close votes | |||
| Jul 30, 2019 at 3:05 | |||||
| Jul 13, 2019 at 3:59 | answer | added | Fraguh | timeline score: 1 | |
| Jul 13, 2019 at 1:55 | comment | added | Prof. Legolasov | The zero comes from the fermion loop of size 3. Such loops always vanish for odd sizes due to Furry's theorem: maths.tcd.ie/~fionn/qft/furry.pdf | |
| Jul 13, 2019 at 1:05 | comment | added | MannyC | You seem to have only one kind of particle-antiparticle ($a$, $a^\dagger$), only two vertices ($t_1$ and $t_2$) with quartic couplings. The diagram you drew instead has four cubic vertices and two particles. How is that what you wrote in formulas? | |
| Jul 12, 2019 at 22:57 | history | asked | AlfredV | CC BY-SA 4.0 |