Gizmodo: Measuring Helium in Distant Galaxies May Give Physicists Insight Into Why the Universe Exists https://gizmodo.com/measuring-helium-in-distant-galaxies-may-give-physicist-1850679794 #bigbangnucleosynthesis #elementaryparticle #quantumfieldtheory #annekatherineburns #technologyinternet #physicalcosmology #creativecommons #astrophysics #thebigbang #antimatter #darkmatter #universe #neutrino #bigbang #helium #matter

Bing winning at jeopardy #bing #quantumfieldtheory

I have a question for the #physics / #solidstatephysics / #quantumfieldtheory people here: We have conservation of quasi-momentum for phonons on crystal lattices, and when we decrease the lattice length a, this asymptotically turns into normal conservation of momentum as the Brillouin zone gets arbitrarily large. This sounds like it has something to do with the crystal lattice symmetry group asymptotically turning into a continuous translation symmetry group. 🧵

"The conventional formulation of how we think about spin is leaving something out potentially important. Sebens is doing something useful in the sense that he’s taking the field-ness of #QuantumFieldTheory very seriously.”

@seanmcarroll@twitter.com quoted at @sciam@twitter.com:

https://www.scientificamerican.com/article/quantum-particles-arent-spinning-so-where-does-their-spin-come-from/

#introduction Hello everyone, greetings from 🇧🇷! I am a #physicist turned #mathematician (BA 2001, MSC 2003, PhD 2008, Universidade de São Paulo). I worked in Universidade Federal de Goiás and Universidade Federal de Minas Gerais. Since 2019 I am an associate professor at Universidade Federal de Catalão. I am interested in #MathematicalPhysics, #StatisticalMechanics and #QuantumFieldTheory. Write in English and Portuguese. From time to time I post some math and logic puzzles.