The Language of Null Hypersurfaces: Luca Ciambelli

Abstract: Carrollian physics provides a new geometric lens to describe lightlike, or null, hypersurfaces. In this talk, I will introduce the basic tools and concepts in order to define the Carrollian structure and explain how it naturally captures the intrinsic geometry of null manifolds. I will then show how to induce this structure directly from an ambient spacetime, and how the familiar geometric relations of general relativity, such as the Gauss-Codazzi equations and Einstein’s equations, appear in this setting. Along the way, I will highlight connections with the BMS symmetry group and the emerging role of Carrollian structures in gravitational physics and holography.

condensed mattergeneral relativity and quantum cosmologyHEP - latticeHEP - theorymathematical physicsquantum physics

Audience: researchers in the topic

Quantum Theories of Fields, Matter, and Strings

Series comments: A series of talks covering a broad range of topics in theoretical physics, including high energy theory, condensed matter, and string theory.

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