Timeline for Is Weyl transformation part of diffeomorphism? Does a gravitational anomaly capture also the anomaly due to Weyl transformation? [duplicate]
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| May 7, 2021 at 0:15 | comment | added | ACuriousMind♦ | It's just confusing nomenclature because the Weyl transformation act on the metric exactly like conformal transformations. As you can see in the duplicate, it's not uncommon for people to confuse Weyl transformations with conformal transformations. | |
| May 7, 2021 at 0:07 | comment | added | ann marie cœur | (Do you get what I am confused about?) | |
| May 7, 2021 at 0:07 | comment | added | ann marie cœur | Thanks, but I am confused by something. If Conformal transformation a subset of diffeomorphisms, then why do we call Weyl anomaly also the Conformal anomaly? Shouldnt Conformal anomaly part of diffeomorphism anomaly (=gravitational anomaly)? | |
| May 7, 2021 at 0:02 | review | Reopen votes | |||
| May 7, 2021 at 15:38 | |||||
| May 6, 2021 at 23:48 | comment | added | ACuriousMind♦ | 1. There are five answers with positive scores on the other post. "accepted" is just a mark the asker hands out, it is not a sign of definitiveness or correctness, just a sign one specific person found one answer most helpful. 2. If you think the answer to your question is different, you should edit your question and explain why you think that. The only way that could be I could see is if Weyl transformations were diffeomorphisms that just were not conformal, but the answers to the other question explain at length that Weyl transformations are not diffeomorphisms/coordinate changes. | |
| May 6, 2021 at 23:43 | comment | added | ann marie cœur | Also Conformal transformations though are differentiable, thus only a subset of diffeomorphisms, So diffeomorphism is more general than Conformal transformation... So my question on diffeomorphism may result in different answers!? | |
| May 6, 2021 at 23:42 | comment | added | ann marie cœur | But there is no accepted answer or final correct answer in the post... | |
| May 6, 2021 at 23:27 | comment | added | ACuriousMind♦ | In case you are confused about why the linked question is a duplicate: Conformal transformations are a subset of diffeomorphisms, so the reasons why conformal transformations and Weyl transformations are different are precisely the same reasons diffeomorphisms and Weyl transformations are different. | |
| May 6, 2021 at 23:26 | history | closed | ACuriousMind♦ quantum-field-theory Users with the quantum-field-theory badge or a synonym can single-handedly close quantum-field-theory questions as duplicates and reopen them as needed. | Duplicate of Conformal transformation/ Weyl scaling are they two different things? Confused! | |
| May 6, 2021 at 23:24 | answer | added | user21299 | timeline score: 3 | |
| May 6, 2021 at 23:18 | history | asked | ann marie cœur | CC BY-SA 4.0 |