A5059876635- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- Noncommutative and Quantum Gravity Theories
- Particle physics theoretical and experimental studies
- Algebraic structures and combinatorial models
- Quantum Electrodynamics and Casimir Effect
- Nonlinear Waves and Solitons
- Computational Physics and Python Applications
- Quantum Chromodynamics and Particle Interactions
- Relativity and Gravitational Theory
- Astrophysical Phenomena and Observations
- Galaxies: Formation, Evolution, Phenomena
- Advanced Numerical Analysis Techniques
- Distributed and Parallel Computing Systems
- Algebraic Geometry and Number Theory
- Quantum chaos and dynamical systems
- Geometry and complex manifolds
- Advanced Topics in Algebra
- Quantum Mechanics and Non-Hermitian Physics
- Topological Materials and Phenomena
- Experimental and Theoretical Physics Studies
- Advanced Differential Equations and Dynamical Systems
- Algebraic and Geometric Analysis
- Geophysics and Gravity Measurements
- Music Technology and Sound Studies
University of Amsterdam
2013-2025
Delta Institute for Theoretical Physics
2009-2022
Princeton University
2000-2003
Columbia University
2003
Utrecht University
1988-1999
European Organization for Nuclear Research
1995-1998
Institute for Advanced Study
1989-1993
University of California, Santa Barbara
1991
Starting from first principles and general assumptions we present a heuristic argument that shows Newton's law of gravitation naturally arises in theory which space emerges through holographic scenario. Gravity is identified with an entropic force caused by changes the information associated positions material bodies. A relativistic generalization presented arguments directly leads to Einstein equations. When emergent even inertia needs be explained. The equivalence principle auggests it...
Recent theoretical progress indicates that spacetime and gravity emerge together from the entanglement structure of an underlying microscopic theory. These ideas are best understood in Anti-de Sitter space, where they rely on area law for entropy. The extension to de space requires taking into account entropy temperature associated with cosmological horizon. Using insights string theory, black hole physics quantum information theory we argue positive dark energy leads a thermal volume...
We present measurements of the radial gravitational acceleration around isolated galaxies, comparing expected given baryonic matter with observed acceleration, using weak lensing from fourth data release Kilo-Degree Survey. These extend relation (RAR) by 2 decades into low-acceleration regime beyond outskirts observable galaxy. compare our RAR to predictions two modified gravity (MG) theories: MOND and Verlinde's emergent gravity. find that measured agrees well MG predictions. In addition,...
We investigate the fine-grained entropy of de Sitter cosmological horizon. Starting from three-dimensional pure space, we consider a partial reduction approach, which supplies an auxiliary system acting as heat bath both at future infinity and inside static patch. This allows us to study time-dependent radiation collected for observers in out-of-equilibrium Unruh-de state, analogous black hole evaporation Central our analysis patch is identification weakly gravitating region close past...
A bstract We present an operator algebraic perspective on the black hole information problem. For a after Page time that is entangled with early radiation we formulate version of puzzle well-posed in G → 0 limit. then give description recovery protocol terms von Neumann algebras using elements Jones index theory type II 1 subfactors. The subsequent evaporation and steps are represented by Jones’s basic construction, operation called canonical shift. central element our projection, which...
The holographic principle is studied in the context of a $n+1$ dimensional radiation dominated closed Friedman-Robertson-Walker (FRW) universe. represented by conformal field theory with large central charge. Following recent ideas on holography, it argued that entropy density early universe bounded multiple Hubble constant. CFT expressed terms energy and Casimir via universal Cardy formula valid for all dimensions. A new purely bound postulated which restricts sub-extensive associated...