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Post ASmemVjSDY0GN8Uqpc by [email protected] |
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More posts by [email protected] |
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Post #ASB5UBifCSxtqZ8Yuu by [email protected] |
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There are ten ways that a substance can have symmetry under time reversal, swit… |
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Post #ASB98BFkeXWVqXNKCm by [email protected] |
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@johncarlosbaez do you record these?I’m not a prof—just a person who loves … |
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Post #ASB98BK0OivU3jMips by [email protected] |
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@sluggard - I've asked the organizer of this series for a recording of this… |
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Post #ASB9SqQhGkQVLRLec4 by [email protected] |
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@andrejbauer - "Is there a way to conceptually define \(\mathrm{III}\) an… |
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Post #ASBA3HHwsygf4Td46a by [email protected] |
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@andrejbauer - also, by the way, the things I called \(\mathrm{III}\) and \(\ma… |
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Post #ASBH7mkgXwiHUVAOtk by [email protected] |
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@johncarlosbaez On slide 11, you say, "If an antiunitary J: H → H has J�… |
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Post #ASBNPDunPKKyNqauK8 by [email protected] |
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@andrejbauer @buchholtz @egbertrijke - I will leave a purely HoTT description t… |
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Post #ASBO2LPTTYlmvEb9Jg by [email protected] |
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@metaweta - Thanks! Yes, I vacillated a while and eventually decided to use 1 … |
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Post #ASCv4jjdUuOyadjkyu by [email protected] |
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@johncarlosbaez Two comments:One. I assume the phrase in the abstract "..… |
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Post #ASCv4joxB8egr8E0Gm by [email protected] |
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@thebluewizard - Yes, this century is the 21st century. There are hints of th… |
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Post #ASCvODZ6oVkmbo6PHk by [email protected] |
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@thebluewizard - yes, the more commonly discussed supergroups used in supersymm… |
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Post #ASDzWPC43ddrxsRWq0 by [email protected] |
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@johncarlosbaez Is it worth mentioning that C and T commute? (Or maybe there ar… |
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Post #ASEDCz6WESKsuETzZQ by [email protected] |
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@Garrett - yes, I should say that C and T commute. Interestingly when we class… |
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Post #ASEFyTMPl0OoGNgoRE by [email protected] |
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@Garrett - P and T commute in many situations, e.g. in a scalar field theory. … |
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Post #ASF9y1xJF7NOhYJSC0 by [email protected] |
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@johncarlosbaez I dived into this after you mentioned 𝑇²=−1, which is a t… |
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Post #ASFAbTxv2LEarlPTjU by [email protected] |
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@johncarlosbaez Apparently quantum field theorists have chosen to live in (-,-,… |
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Post #ASFCUfIgh9aDu009Eu by [email protected] |
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@Garrett - that's really interesting! I'll have to think abot whether … |
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Post #ASFD31n9ZxYtVIdYRc by [email protected] |
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@Garrett - you may be interested in Cecile DeWitt-Morette's article on CPT … |
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Post #ASFEhTjvBlDvihyfHk by [email protected] |
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@johncarlosbaez Yes, that paper has been my prime reference for this stuff! On … |
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Post #ASFR8ZbQhH6lAlgwSm by [email protected] |
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@Garrett - the quantum field theorists I know think a lot about C, P, and T! … |
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Post #ASNnJiRluIPA2nZWaG by [email protected] |
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@johncarlosbaez My favorite topic by my favorite educator. I aspire to relate t… |
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Post #ASSPTuv8xU9oW7RQrg by [email protected] |
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@johncarlosbaez Note that 10=1+2+3+4 and 1*2*3*4=24, so 10 is just 24 in disgui… |
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Post #ASSeqvi1gx7sw2jmFc by [email protected] |
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@EtienneJacques - heh! I'd say 24 is more like 8, and 26 is like 10. Bo… |
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Post #ASiNlyTNOoaXMpIMEa by [email protected] |
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@johncarlosbaez Related, from wikipedia, "Leibniz also believed that the s… |
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Post #ASiOpEc7wXeOFcVTbE by [email protected] |
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@EtienneJacques - one half??? That's very weird. |
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Post #ASibpA6c0IYJfm3rm4 by [email protected] |
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@johncarlosbaez This might make sense as the "average value of the Riemann… |
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Post #ASifNStQxUwxeJwi4u by [email protected] |
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@EtienneJacques - a bunch of complex functions extend analytically to \(\infty\… |
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Post #ASmemVjSDY0GN8Uqpc by [email protected] |
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@johncarlosbaez Thanks. I will get a few books on the topic. I used to know mor… |
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Post #ASmf9BmEZneD8ubvMm by [email protected] |
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@EtienneJacques - okay! If you have a complex analytic function and it only ha… |
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Post #Ad2a9gwMiy4obNNvIe by [email protected] |
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@johncarlosbaez @Garrett Thank you, this paper is a gold mine. |
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Post #Ad2hqSSJ9a4HoEfJPE by [email protected] |
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@vacuumbubbles - great, I'm glad you like it! |
