Conformally invariant off-shell string physics [PDF]
Physical Review Letters, 1992 Using recent advances in the understanding of non-critical strings, we construct a unique, conformally invariant continuation to off-shell momenta of Polyakov amplitudes in critical string theory. Three-point amplitudes are explicitly calculated.
Myers, Robert C., Periwal, Vipul
core +4 more sources
Training neural operators to preserve invariant measures of chaotic attractors [PDF]
Neural Information Processing Systems, 2023 Chaotic systems make long-horizon forecasts difficult because small perturbations in initial conditions cause trajectories to diverge at an exponential rate.
Ruoxi Jiang +3 more
semanticscholar +1 more source
Radial bound states in the continuum for polarization-invariant nanophotonics [PDF]
Nature Communications, 2022 All-dielectric nanophotonics underpinned by the physics of bound states in the continuum (BICs) have demonstrated breakthrough applications in nanoscale light manipulation, frequency conversion and optical sensing.
Lucca Kühner +7 more
semanticscholar +1 more source
Carroll contractions of Lorentz-invariant theories [PDF]
Journal of High Energy Physics, 2021 We consider Carroll-invariant limits of Lorentz-invariant field theories. We show that just as in the case of electromagnetism, there are two inequivalent limits, one “electric” and the other “magnetic”.
M. Henneaux, P. Salgado-Rebolledo
semanticscholar +1 more source
Classical gravitational scattering from a gauge-invariant double copy [PDF]
Journal of High Energy Physics, 2021 We propose a method to compute the scattering angle for classical black hole scattering directly from two massive particle irreducible diagrams in a heavy-mass effective field theory approach to general relativity, without the need of subtracting ...
A. Brandhuber +3 more
semanticscholar +1 more source
Modular invariant dynamics and fermion mass hierarchies around τ = i [PDF]
Journal of High Energy Physics, 2021 We discuss fermion mass hierarchies within modular invariant flavour models. We analyse the neighbourhood of the self-dual point τ = i, where modular invariant theories possess a residual Z4 invariance.
F. Feruglio +3 more
semanticscholar +1 more source
Absolute Geometry: From Basics to the π-rule of the Ф-invariant Physics
Advances in Theoretical & Computational Physics, 2021 This is to clarify in more detail some basic aspects of absolute geometry and discuss what is the π-rule in physics unified by the universal Ф ...
semanticscholar +1 more source
Explainable Equivariant Neural Networks for Particle Physics: PELICAN [PDF]
Journal of High Energy Physics, 2023 PELICAN is a novel permutation equivariant and Lorentz invariant or covariant aggregator network designed to overcome common limitations found in architectures applied to particle physics problems.
A. Bogatskiy +4 more
semanticscholar +1 more source
The occurrence frequency of upward ion beams in the auroral zone as a function of altitude using Polar/TIMAS and DE-1/EICS data [PDF]
Annales Geophysicae, 2003 We study the occurrence frequency of upward auroral ion beams as a function of altitude using three years of Polar/TIMAS ion data combined with 11 years of DE-1/ EICS ion data, in order to reach a complete altitude coverage between 5000 and ...
P. Janhunen, A. Olsson, W. K. Peterson
doaj +1 more source
Experimental Identification of the Second‐Order Non‐Hermitian Skin Effect with Physics‐Graph‐Informed Machine Learning [PDF]
Advancement of science, 2022 Topological phases of matter are conventionally characterized by the bulk‐boundary correspondence in Hermitian systems. The topological invariant of the bulk in d dimensions corresponds to the number of (d − 1)‐dimensional boundary states.
Ce Shang +13 more
semanticscholar +1 more source