102 citations · 725 across the 38 of their papers we have counts for
13 papers · 1 filter
Quantum Foundations as a Guide for Refining Particle Theories
Gerard t Hooft
All quantum field theories that describe interacting bosonic elementary particles, share the feature that the zeroth order perturbation expansion describes non-interacting harmonic…
Nature's Book Keeping System
Gerard t Hooft
Establishing how one should describe and study natures fundamental degrees of freedom is a notoriously difficult problem. It is tempting to assume that the number of bits (or qubit…
Discreteness and Determinism in Superstrings
Gerard 't Hooft
Ideas presented in two earlier papers are applied to string theory. It had been found that a deterministic cellular automaton in one space- and one time dimension can be mapped ont…
Unitarity in the Brout-Englert-Higgs Mechanism for Gravity
Gerard 't Hooft
Just like the vector bosons in Abelian and non-Abelian gauge theories, gravitons can attain mass by spontaneous local symmetry breaking. The question is whether this can happen in…
The Grand View of Physics
Gerard 't Hooft
Abdus Salam was known for his `grand views', grand views of science as well as grand views of society. In this talk the grand view of theoretical physics is put in perspective.
Emergent Quantum Mechanics and Emergent Symmetries
Gerard 't Hooft
Quantum mechanics is 'emergent' if a statistical treatment of large scale phenomena in a locally deterministic theory requires the use of quantum operators. These quantum operators…
Minimal Strings for Baryons
Gerard 't Hooft
A simple model is discussed in which baryons are represented as pieces of open string connected at one common point. There are two surprises: one is that, in the conformal gauge, t…
Renormalization without infinities
Gerard 't Hooft
Most renormalizable quantum field theories can be rephrased in terms of Feynman diagrams that only contain dressed irreducible 2-, 3-, and 4-point vertices. These irreducible verti…
Quantum Mechanics and Determinism
Gerard 't Hooft
It is shown how to map the quantum states of a system of free scalar particles one-to-one onto the states of a completely deterministic model. It is a classical field theory with a…
How Does God Play Dice? (Pre-)Determinism at the Planck Scale
Gerard 't Hooft
In deterministic theories, one can start from a set of ontological states to formulate the dynamical laws, but these may not be directly observable. Observable are only equivalence…
Determinism in Free Bosons
Gerard 't Hooft
It is shown how to map the quantum states of a system of free Bose particles one-to-one onto the states of a completely deterministic model. It is a classical field theory with a l…
Determinism and Dissipation in Quantum Gravity, Erice lecture
Gerard 't Hooft
Without invalidating quantum mechanics as a principle underlying the dynamics of a fundamental theory, it is possible to ask for even more basic dynamical laws that may yield quant…
Topological Aspects of Quantum Chromodynamics
Gerard 't Hooft
Absolute confinement of its color charges is a natural property of gauge theories such as quantum chromodynamics. On the one hand, it can be attributed to the existence of color-ma…