Wikipedia talk:WikiProject Physics/Archive August 2017

Clean up requested for Time crystal

Could someone familiar with photonics + fundamental physics give time crystal a review? Does it appropriately cover the recent experiments, and is the extensive discussion of symmetry and symmetry-breaking appropriate? Thank you. – SJ + 04:39, 2 August 2017 (UTC)

Help with Bell test article

Bell test experiment needs help, in particular it lacks a lede that a lay person can decipher. I have written a proposed lede and new overview section here but could use some help. I am not entirely confident in my understanding of the topic. Thanks. Informata ob Iniquitatum (talk) 08:07, 4 August 2017 (UTC)

Good start! I took a crack at revising it. XOR'easter (talk) 18:41, 4 August 2017 (UTC)

Hmm, the article on Bell's theorem itself seems better than Bell test experiments, despite the unhappy hat-note at the top. XOR'easter (talk) 18:50, 4 August 2017 (UTC)

Should there be a hyphen in "Fourier-transform infrared spectroscopy"?

Somebody recently moved the page from Fourier transform infrared spectroscopy to Fourier-transform infrared spectroscopy (with a hyphen between "Fourier" and "transform"). If you have an opinion about which punctuation is better, please comment at Talk:Fourier-transform infrared spectroscopy#Propose to undo recent move. --Steve (talk) 01:42, 13 August 2017 (UTC)

Help with theoretical stuff

I'm working on a project involving theoretical elements, so I'm trying to make a reference page for it. Can someone here help me fill out the missing electrons per shell counts in this section? It starts with 122. I haven't done anything with chemistry for over 27 years. I appreciate any help. ···日本穣 · 投稿 · Talk to Nihonjoe · Join WP Japan! 03:10, 12 August 2017 (UTC)

To the best of my knowledge, there are still lots of unknowns about what might even be good guesses for electronic configurations of the really, really heavy elements. But I did find a table of hypotheticals here: Nefedov, V. I.; Trzhaskovskaya, M. B.; Yarzhemskii, V. G. (2006-06-01). "Electronic configurations and the periodic table for superheavy elements" (PDF). Doklady Physical Chemistry. 408 (2): 149–151. doi:10.1134/s0012501606060029. ISSN 0012-5016. XOR'easter (talk) 16:11, 12 August 2017 (UTC)

@XOR'easter: Can you provide a quick primer on how to read that PDF? I don't understand the notation. ···日本穣 · 投稿 · Talk to Nihonjoe · Join WP Japan! 23:30, 12 August 2017 (UTC)

Notation looks clear enough to me. Editors make the best edits in subjects that they have a good understanding of. Xxanthippe (talk) 23:45, 12 August 2017 (UTC).

As I understand it, it's fairly standard electron configuration notation, with the extra detail that in atoms with this many electrons, multiple configurations can have very close to the same energy, so the ground state is best taken to be a weighted combination of them. XOR'easter (talk) 20:20, 13 August 2017 (UTC)

Bulletin of the American Astronomical Society and American Geophysical Union, Fall Meeting cleanup

Please see WT:JCW#Invalid cleanup. This concerns the usage of |journal= in |cite journal=. Headbomb {t · c · p · b} 16:19, 18 August 2017 (UTC)

Files for upload

There is currently a request for upload at Wikipedia:Files for upload#Measurement symbol for quantum gates, which should probably be reviewed by someone from this project for accuracy and necessity prior to uploading and addition to the article. Thanks. TimothyJosephWood 12:30, 21 August 2017 (UTC)

Yep, that looks like a standard QASM symbol for a measurement. It's accurate, important for understanding quantum circuit diagrams, and I can't imagine there being a copyright issue. XOR'easter (talk) 14:05, 21 August 2017 (UTC)

ISO 4 redirects help!

{{Infobox journal}} now features ISO 4 redirect detection to help with the creation and maintenance of these redirects, and will populate Category:Articles with missing ISO 4 abbreviation redirects. ISO 4 redirects help readers find journal articles based on their official ISO abbreviations (e.g. J. Phys. A → Journal of Physics A), and also help with compilations like WP:JCW and WP:JCW/TAR. The category is populated by the |abbreviation= parameter of {{Infobox journal}}. If you're interested in creating missing ISO 4 redirects:

• Load up an article from the category (or only check for e.g. Physics journals).
• One or more maintenance templates should be at the top of page, with links to create the relevant redirects and verify the abbreviations.
• VERIFY THAT THE ABBREVIATION IN |abbreviation= IS CORRECT FIRST

• There are links in the maintenance templates to facilitate this. See full detailed instructions at Category:Articles with missing ISO 4 abbreviation redirects.
• |abbreviation= should contain dotted, title cased versions of the abbreviations (e.g. J. Phys., not J Phys or J. phys.). Also verify that the dots are appropriate.
• If you cannot determine the correct abbreviation, or aren't sure, leave a message at WT:JOURNALS and someone will help you.

• Use the link in the maintenance template to create the redirects and automatically tag them with {{R from ISO 4}}.
• WP:NULL/WP:PURGE the original article to remove the maintenance templates.

Thanks! Headbomb {t · c · p · b} 12:46, 31 August 2017 (UTC)