Quantum Field Theory on Low-Regularity Spacetimes
Explore quantum field theory on low-regularity spacetimes, focusing on massless scalar fields, Cauchy problems, Green operators, and physical states in a mathematically rigorous framework.
Gromov-Hausdorff Theory for Lorentzian Spaces
Explore Gromov-Hausdorff distance for bounded Lorentz-metric spaces, addressing stability in geometric conditions and its relevance to Einstein equations and cosmic censorship.
Nonlocal Generalizations of Green Hyperbolicity in Curved Spacetimes
Explore nonlocal generalisations of Green hyperbolicity, examining applications in QFT on curved spacetimes and implications for measurement theory and noncommutative geometries.
Beyond Black Holes: Uniqueness Properties of Ultra-Massive Spacetimes - Lecture
Explore ultra-massive spacetimes, their unique properties, and implications beyond black holes. Discover how they overcome cosmological constant repulsion and affect universe collapse.
Remarks on the Cosmological Constant as an Initial Condition for Milne-like Spacetimes
Explore Milne-like spacetimes and their implications for the cosmological constant, early universe expansion, and inflationary scenarios in this advanced physics lecture.
Quasi-Local Mass, Positive Scalar Curvature and Positive Mass Theorem for Causal Variational Principles
Explore quasi-local mass, positive scalar curvature, and positive mass theorem in causal variational principles. Gain insights into non-regular spacetime geometry and its applications.
Causal Evolution of Measures and Continuity Equation in Spacetime Geometry
Explore causal evolution of measures in spacetime, examining alternative descriptions and their relationships through probability measures, causal curves, and continuity equations in globally hyperbolic settings.
Uniform Temporal Functions in Non-regular Spacetime Geometry
Explore uniform temporal functions, their properties, and differences from Cauchy time functions in non-regular spacetime geometry.
Causal Set Kinematics: Reconstructing Spacetime Geometry from Random Posets
Explore causal set quantum gravity, reconstructing spacetime geometry from random posets. Learn dimension estimation, topology, and geometric invariants in discrete orders.
Supertranslation Invariance and Covariance of Lorentz Charges in General Relativity
Explore supertranslation invariance and covariance of Lorentz charges in general relativity, addressing key problems and presenting new covariant formulas for flux calculations.
Carroll Swiftons - Exploring Carrollian Physics and Holography
Explore Carroll Swiftons in-depth with Marc Henneaux, delving into Carrollian Physics and its connections to holography.
Carroll and Applications - Selected Topics - Lecture 1
Explore Carrollian geometric structures and their role in constructing Ricci-flat spacetimes from Einstein geometries, focusing on applications in asymptotically flat dynamics and holography.
The Case Against Smooth Null Infinity and the Persistence of Polyhomogeneity
Explore gravitational radiation's asymptotic behavior near spacelike infinity, challenging smooth null infinity and unveiling polyhomogeneous asymptotics in linearized gravity around Schwarzschild.
Fractons and Quantum Theories with Exotic Symmetry
Explore fractons and quantum theories with exotic symmetry, delving into cutting-edge concepts in theoretical physics and their implications.
Fracton Infrared Triangle in Dipole-Conserving Theories
Explore fracton gauge theory, dipole coupling, and IR structures beyond Lorentz symmetry. Uncover double kick memory effect and novel dipole soft theorem in conserved dipole moment theories.
Hydrodynamics: From Relativistic to Carroll - Lecture
Explore hydrodynamics as an effective field theory, focusing on symmetries and their role in constructing Euclidean thermal partition functions for exotic field theories.
Null Raychauduri: Canonical Structure, Dressing Time and Quantum Geometry
Explore canonical structure, dressing time, and quantum geometry in null Raychauduri equations with Laurent Freidel's insightful lecture.
Hyperbolic Mass in 2+1 Dimensions
Explore gluing theorems for time-symmetric vacuum general relativistic initial data sets in 2D space, focusing on mass formulae and Banados geometries near conformal infinity.
CFT Explorations of BMS-Like Algebras
Explore conformal field theoretic realisations of BMS-like algebras and their BRST complexes in semi-infinite cohomology.
Asymptotic Structures at Timelike Infinity from Projective Geometry
Explore asymptotic structures at timelike infinity using projective geometry in this advanced physics lecture by Jack Borthwick.
Discovering Dynamic Laws from Observations: The Case of Self-Propelled Particles
Explore machine learning techniques for uncovering forces in active matter systems, from cellular to animal scales. Learn to extract local dynamics crucial for understanding collective phenomena.