#amplitudes — Public Fediverse posts

Registration is open until 1st of June for the #amplitudes summer school in #Southampton UK. This school is targeted at doctoral candidates in theoretical #physics and it covers modern topics in #quantumFieldTheory and amplitudes at a level at detail exceeding the unsual university lectures. #academicConference
https://amplitudes.soton.ac.uk/school26/

Registration is open until 1st of June for the #amplitudes summer school in #Southampton UK. This school is targeted at doctoral candidates in theoretical #physics and it covers modern topics in #quantumFieldTheory and amplitudes at a level at detail exceeding the unsual university lectures. #academicConference
https://amplitudes.soton.ac.uk/school26/

Registration is open until 1st of June for the #amplitudes summer school in #Southampton UK. This school is targeted at doctoral candidates in theoretical #physics and it covers modern topics in #quantumFieldTheory and amplitudes at a level at detail exceeding the unsual university lectures. #academicConference
https://amplitudes.soton.ac.uk/school26/

Registration is open until 1st of June for the #amplitudes summer school in #Southampton UK. This school is targeted at doctoral candidates in theoretical #physics and it covers modern topics in #quantumFieldTheory and amplitudes at a level at detail exceeding the unsual university lectures. #academicConference
https://amplitudes.soton.ac.uk/school26/

Registration is open until 1st of June for the #amplitudes summer school in #Southampton UK. This school is targeted at doctoral candidates in theoretical #physics and it covers modern topics in #quantumFieldTheory and amplitudes at a level at detail exceeding the unsual university lectures. #academicConference
https://amplitudes.soton.ac.uk/school26/

In my #dailyPaperChallenge today I have read "Geometry-Kinematics Duality" from 2022. This article is about scalar field theories. From a structural point of view, the non-linear sigma model is the simplest possible scalar field theory, its Lagrangian consists solely of a kinematic term. From this, one can generate all other scalar Lagrangians by introducing a factor that is itself a functional of fields, i.e. it can act by multiplication, but also by derivatives or by "inverse derivatives". It turns out that this object can consistently be interpreted as a metric tensor, analogously to the metric tensor in general relativity, but acting on the "space of field variables" rather than "space of positions". With this, various tree level (i.e. classical, not quantum) #amplitudes can be expressed as geometric objects, for example the Riemann curvature tensor essentially takes the role of the 4-point amplitude. This paper is loosely related to my own work on field redefinition invariance from a few years ago. #paperOfTheDay https://arxiv.org/abs/2202.06972

 
#Scientists Discover a #Jewel at the Heart of #Quantum #Physics.

…"The #Amplituhedron looks like an intricate, multifaceted jewel in higher #dimensions. Encoded in its #volume are the most basic features of reality that can be calculated, “scattering amplitudes,” which represent the likelihood that a certain set of #particles will turn into certain other particles upon #colliding…

🔗 https://www.wired.com/2013/12/amplituhedron-jewel-quantum-physics/ 11 Dec 2013

#Community #TimeTravel #Research #quantum #amplitudes #math #geometry