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The formalism of causal dynamical triangulations (CDT) provides us with a non-perturbatively defined model of quantum gravity, where the sum over histories includes only causal space-time histories.… (More)

We formulate the string field theory in zero-dimensional target space corresponding to the two-dimensional quantum gravity theory defined through Causal Dynamical Triangulations. This third… (More)

- Renate Loll, Willem Westra
- 2003

It is well-known that the sum over topologies in quantum gravity is ill-defined, due to a super-exponential growth of the number of geometries as a function of the space-time volume, leading to a… (More)

We review a recently discovered continuum limit for the one-matrix model which describes " causal " two-dimensional quantum gravity. The behaviour of the quantum geometry in this limit is different… (More)

We present a novel tight bound on the quantum violations of the CGLMP inequality in the case of infinitely many outcomes. Like in the case of Tsirelson’s inequality the proof of our new inequality… (More)

- Matthew Salter, Willem Westra, +12 authors Alexandre V Akoulitchev
- 2018

- Willem Westra
- 2003

In this thesis we analyze a very simple model of two dimensional quantum gravity based on causal dynamical triangulations (CDT). We present an exactly solvable model which indicates that it is… (More)

We have shown how the quantization of two-dimensional quantum gravity with an action which contains only a positive cosmological constant and boundary cosmological constants leads to the emergence of… (More)

We define a new scaling limit of matrix models which can be related to the method of causal dynamical triangulations (CDT) used when investigating two-dimensional quantum gravity. Surprisingly, the… (More)