Daoyuan Qian (@daoyuanqian219) 's Twitter Profile
Daoyuan Qian

@daoyuanqian219

Theoretical physicist trying to do biology experiments and failing miserably in a chemistry department.

ID: 1481226756866691082

calendar_today12-01-2022 11:29:30

29 Tweet

85 Followers

60 Following

Daoyuan Qian (@daoyuanqian219) 's Twitter Profile Photo

*Me trying to think of a random project to do in a meeting before the start of my PhD* PRX: seems cool let us put that online

KnowlesLab Cambridge (@knowleslabcamb) 's Twitter Profile Photo

Absolutely thrilling news on Professor Tuomas Knowles being elected as the new 1920 Professor of Physical Chemistry - big congratulations! You can read more on the appointment here: ch.cam.ac.uk/news/new-1920-…

Daoyuan Qian (@daoyuanqian219) 's Twitter Profile Photo

PhD rejection season is here again - if you are one of those poor souls on Gradcafe please be reassured you are not alone (been there myself) and rejections don’t mean you are bad AT ALL :(

Daoyuan Qian (@daoyuanqian219) 's Twitter Profile Photo

Experimentalist: if you can’t measure salt concentration you don’t know whether it partitions in or out of condensates. Theoretician: hold my vodka…

Daoyuan Qian (@daoyuanqian219) 's Twitter Profile Photo

Physicists have one skill: Taylor expanding everything to first order. Here, we did one Taylor expansion. And somehow this rigorously addressed condensate formation with an arbitrary number of components. Cambridge go burrrrr

Daoyuan Qian (@daoyuanqian219) 's Twitter Profile Photo

By plotting some old datasets with prettier colour schemes, we developed a new theoretical framework and are gonna keep publishing these nice figures :D

Yann LeCun (@ylecun) 's Twitter Profile Photo

Nah, that's merely what the overly optimistic young guns, AGI startup fund raisers, and self-deluded technologists. For most "serious" folks, the correct statement is: "Human-level AI is always 10-20 years away" 😂😂😂

Daoyuan Qian (@daoyuanqian219) 's Twitter Profile Photo

If you make a ice cream cheesecake with cheesecake-flavoured ice cream, do you just get a cheesecake? If not, does that mean the dual of a dual space in physics is NOT the original space, unlike in maths?

Daoyuan Qian (@daoyuanqian219) 's Twitter Profile Photo

“How do we explain this data?? These experiments involve proteins, salt, buffers, proton, …” “Idk bruh just calculate the charge and square it, that’s probably it 😬”

Daoyuan Qian (@daoyuanqian219) 's Twitter Profile Photo

Mathematicians 🧐: SO(3) is double-covered by the simply connected SU(2) and has fundamental group isomorphic to ℤ/2ℤ Physicists 🤪: so you know, if you just roll something downhill, it rolls over itself twice in each period? arxiv.org/abs/2407.19861

Mathematicians 🧐: SO(3) is double-covered by the simply connected SU(2) and has fundamental group isomorphic to ℤ/2ℤ

Physicists 🤪: so you know, if you just roll something downhill, it rolls over itself twice in each period?

arxiv.org/abs/2407.19861
Daoyuan Qian (@daoyuanqian219) 's Twitter Profile Photo

When you can’t measure something experimentally, just give up and construct a whole new framework that doesn’t require that measurement instead.

Daoyuan Qian (@daoyuanqian219) 's Twitter Profile Photo

If you roll a ball down a ramp, you find the hairy ball theorem and doubly-connectedness of SO(3) ⚽️ seas.harvard.edu/news/2025/03/g…