Timeline for Why doesn't this diagram appear in the partition function in zero-dimensional QFT?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Feb 13, 2023 at 1:53 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
edited body
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| Feb 13, 2023 at 1:06 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
Added explanation
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| Feb 12, 2023 at 21:32 | comment | added | acernine | Thanks, I'll look into the linked cluster theorem. I'm confused however as to how there can be more diagrams contributing to the partition function at order $J^2$ as the second diagram in my post, when accounting for the symmetry factor of 4 agrees with the explicit calculation. Wouldn't any further diagrams give something that disagrees with this? | |
| Feb 12, 2023 at 20:45 | history | answered | Qmechanic♦ | CC BY-SA 4.0 |