642 citations · 3k across the 35 of their papers we have counts for
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Black Hole Firewalls and Quantum Mechanics
Gerard t Hooft
Firewalls in black holes are easiest to understand by imposing time reversal invariance, together with a unitary evolution law. The best approach seems to be to split up the time s…
The firewall transformation for black holes and some of its implications
Gerard t Hooft
A promising strategy for better understanding space and time at the Planck scale, is outlined and further pursued. It is explained in detail, how black hole unitarity demands the e…
Black hole unitarity and antipodal entanglement
Gerard 't Hooft
Hawking particles emitted by a black hole are usually found to have thermal spectra, if not exactly, then by a very good approximation. Here, we argue differently. It was discovere…
Singularities, horizons, firewalls, and local conformal symmetry
Gerard 't Hooft
The Einstein-Hilbert theory of gravity can be rephrased by focusing on local conformal symmetry as an exact, but spontaneously broken symmetry of nature. The conformal component of…
Diagonalizing the Black Hole Information Retrieval Process
Gerard t Hooft
The mechanism by which black holes return the absorbed information to the outside world is reconsidered, and described in terms of a set of mutually non-interacting modes. Our mech…
Local Conformal Symmetry: the Missing Symmetry Component for Space and Time
Gerard T. Hooft
Local conformal symmetry is usually considered to be an approximate symmetry of nature, which is explicitly and badly broken. Arguments are brought forward here why it has to be tu…
A class of elementary particle models without any adjustable real parameters
Gerard 't Hooft
Conventional particle theories such as the Standard Model have a number of freely adjustable coupling constants and mass parameters, depending on the symmetry algebra of the local…
Horizons
Gerard 't Hooft
The gravitational force harbours a fundamental instability against collapse. In standard General Relativity without Quantum Mechanics, this implies the existence of black holes as…
Quantum Gravity as a Dissipative Deterministic System
Gerard 't Hooft
It is argued that the so-called holographic principle will obstruct attempts to produce physically realistic models for the unification of general relativity with quantum mechanics…
TransPlanckian Particles and the Quantization of Time
G. 't Hooft
Trans-Planckian particles are elementary particles accelerated such that their energies surpass the Planck value. There are several reasons to believe that trans-Planckian particle…
The self-screening Hawking atmosphere
G. 't Hooft
A model is proposed in which the Hawking particles emitted by a black hole are treated as an envelope of matter that obeys an equation of state, and acts as a source in Einstein's…
The scattering matrix approach for the quantum black hole, an overview
G. 't Hooft
If one assumes the validity of conventional quantum field theory in the vicinity of the horizon of a black hole, one does not find a quantum mechanical description of the entire bl…
Quantization of Point Particles in 2+1 Dimensional Gravity and Space-Time Discreteness
G. 't Hooft
By investigating the canonical commutation rules for gravitating quantized particles in a 2+1 dimensional world it is found that these particles live on a space-time lattice. The s…
Black Hole Evaporation without Information Loss
C. R. Stephens, G. 't Hooft, B. F. Whiting
An approach to black hole quantization is proposed wherein it is assumed that quantum coherence is preserved. A consequence of this is that the Penrose diagram describing gravitati…
Dimensional Reduction in Quantum Gravity
G. 't Hooft
The requirement that physical phenomena associated with gravitational collapse should be duly reconciled with the postulates of quantum mechanics implies that at a Planckian scale…
Canonical Quantization of Gravitating Point Particles in 2+1 Dimensions
Gerard 't Hooft
A formalism previously introduced by the author using tesselated Cauchy surfaces is applied to define a quantized version of gravitating point particles in 2+1 dimensions. We obser…