On the Mixed Helicity Sector of Celestial Symmetries

Explore the intricate mathematical framework of celestial symmetries through an advanced physics lecture focusing on the mixed helicity sector, delivered by Daniele Pranzetti at the prestigious Galileo Galilei Institute. Delve into cutting-edge theoretical physics concepts that bridge quantum field theory and gravitational physics, examining how celestial amplitudes and their symmetry structures manifest in mixed helicity configurations. Investigate the mathematical foundations underlying celestial holography and its connections to asymptotic symmetries in gauge theories and gravity. Analyze the role of helicity in scattering amplitudes and how mixed helicity sectors contribute to our understanding of infinite-dimensional symmetry algebras at null infinity. Gain insights into recent developments in theoretical physics that connect celestial sphere representations with fundamental symmetries of nature, providing a deeper understanding of the geometric and algebraic structures that govern particle interactions at the boundary of spacetime.