A5059474142- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- Quantum Mechanics and Applications
- Noncommutative and Quantum Gravity Theories
- Relativity and Gravitational Theory
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Biofield Effects and Biophysics
- Quantum Electrodynamics and Casimir Effect
- Advanced Thermodynamics and Statistical Mechanics
- Computational Physics and Python Applications
- Cellular Automata and Applications
- Quantum Computing Algorithms and Architecture
- International Science and Diplomacy
- Philosophy and History of Science
- Quantum Information and Cryptography
- Algebraic and Geometric Analysis
- Space Science and Extraterrestrial Life
- advanced mathematical theories
- Computability, Logic, AI Algorithms
- Experimental and Theoretical Physics Studies
- Earth Systems and Cosmic Evolution
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum chaos and dynamical systems
- Atomic and Subatomic Physics Research
Utrecht University
2014-2024
Delta Institute for Theoretical Physics
1980-2022
Instituto de Física Teórica
2007-2020
Spinoza Centre for Neuroimaging
2005-2016
Geriant
1997
Harvard University
1976-1994
European Organization for Nuclear Research
1973-1993
California Institute of Technology
1981
Stanford Synchrotron Radiation Lightsource
1977
SLAC National Accelerator Laboratory
1977
In models of fermions coupled to gauge fields certain current-conservation laws are violated by Bell-Jackiw anomalies. perturbation theory the total charge corresponding such currents seems be still conserved, but here it is shown that nonperturbative effects can give rise interactions violate conservation. One consequence baryon and lepton number nonconservation in $V\ensuremath{-}A$ theories with charm. Another nonvanishing mass squared $\ensuremath{\eta}$.
A detailed quantitative calculation is carried out of the tunneling process described by Belavin-Polyakov-Schwarz-Tyupkin field configuration. certain chiral symmetry violated as a consequence Adler-Bell-Jackiw anomaly. The collective motions pseudoparticle and all contributions from single loops scalar, spinor, vector fields are taken into account. result an effective interaction Lagrangian for spinors.
The requirement that physical phenomena associated with gravitational collapse should be duly reconciled the postulates of quantum mechanics implies at a Planckian scale our world is not 3+1 dimensional. Rather, observable degrees freedom can best described as if they were Boolean variables defined on two-dimensional lattice, evolving time. This observation, deduced from much more than unitarity, entropy and counting arguments, severe restrictions possible models gravity. Using cellular...
Almost all theories of fundamental interactions are nowadays based on the gauge concept. Starting with historical example quantum electrodynamics, we have been led to successful unified theory weak and electromagnetic interactions, finally a non abelian strong notion permanently confined quarks. The. early theoretical work was devoted proofs renormalizability, investigation short distance behaviour, discovery asymptotic freedom, etc . ., aspects which were accessible tools extrapolated from...