Finished reading this interesting review on deriving gravitational wave tail terms from the soft graviton theorem. The theorem is universal in a sense that all the expansion terms are dependent only on the global properties of incoming/outgoing particles such as 4-momenta/mass and spins. References [1-5] were incredibly helpful to go through, and to see how logarithmic terms are derived step by step. Incredible read overall, learnt a lot!
https://t.co/kTBbA4PqA5
El paper [1], publicado en Physical Review Letters, propone un test experimental de la conjetura ER=EPR de Maldacena y Susskind [2] basándose en la observación de la estructura fina del espectro del átomo de hodrógeno. Pueden encontrar en preprint en [3]. La idea es la siguiente:
Physicist Ernst Mach's highly unusual self-portrait
Mach sketched himself while lying on his sofa and only looking out of his left-eye. The sketch reflected his life-long interest in symmetry and perception.
#ErnstMach#Science#physics#Mach
American physicist Edward Witten explains why it wasn’t until Einstein's work that we fully understand the reason behind the inverse square law, and why it's specifically a square rather than some arbitrary decimal
1 / distance² vs. 1 / distance¹·⁷⁴⁸²²⋅⋅⋅
At age 25, Kurt Gödel proved there can never be a mathematical “theory of everything.” In this week’s Qualia column, @nattyover asks experts how his ideas changed the course of humanity’s unending search for truth. https://t.co/UVDtVlYJkZ
Attention @arxiv authors: Our Code of Conduct states that by signing your name as an author of a paper, each author takes full responsibility for all its contents, irrespective of how the contents were generated. 1/
https://t.co/0UQ5H7gNqV
https://t.co/OmaR6micyZ
A public lecture of Scott Aaronson at the Simons Center, highly recommended. Followed by a lecture on AI alignment, which was also brilliant.
After much blood, sweat, and tears, our review on Love numbers is now online!
We aimed to be both pedagogical and comprehensive, to make this a resource for researchers in any subfield at any level. Comments are very much welcome.
https://t.co/YtmzVGCQoF
One of those moments where the equations for many different physical situations have exactly the same appearance.
Image from Hayato Motohashi's talk on non-hermitian black hole physics.