Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Brunekreef, Joren"'
Image segmentation algorithms can be understood as a collection of pixel classifiers, for which the outcomes of nearby pixels are correlated. Classifier models can be calibrated using Inductive Conformal Prediction, but this requires holding back a s
Externí odkaz:
http://arxiv.org/abs/2311.11837
Autor:
Brunekreef, Joren
This thesis investigates low-dimensional models of nonperturbative quantum gravity, with a special focus on Causal Dynamical Triangulations (CDT). We define the so-called curvature profile, a new quantum gravitational observable based on the quantum
Externí odkaz:
http://arxiv.org/abs/2311.06910
We provide a hands-on introduction to Monte Carlo simulations in nonperturbative lattice quantum gravity, formulated in terms of Causal Dynamical Triangulations (CDT). We describe explicitly the implementation of Monte Carlo moves and the associated
Externí odkaz:
http://arxiv.org/abs/2310.16744
Autor:
Brunekreef, Joren, Németh, Dániel
We perform a detailed investigation of the phase structure and the semiclassical effective action of (2+1)-dimensional Causal Dynamical Triangulations (CDT) quantum gravity using computer simulations. On the one hand, we study the effect of enlarging
Externí odkaz:
http://arxiv.org/abs/2208.13084
Publikováno v:
In Computer Physics Communications July 2024 300
Differential reformulations of field theories are often used for explicit computations. We derive a one-matrix differential formulation of two-matrix models, with the help of which it is possible to diagonalize the one- and two-matrix models using a
Externí odkaz:
http://arxiv.org/abs/2108.00540
Autor:
Brunekreef, Joren, Reitz, Marcus
It is an open question whether fluctuations at the Planck scale in a non-perturbative theory of quantum gravity behave in such a way that the resulting semi-classical geometry can be modelled by a space that admits (approximate) Killing symmetries. W
Externí odkaz:
http://arxiv.org/abs/2012.14518
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Autor:
Jiang, Yunfeng, Brunekreef, Joren
We study the scalar products between Bethe states in the XXZ spin chain with anisotropy $|\Delta|>1$ in the semi-classical limit where the length of the spin chain and the number of magnons tend to infinity with their ratio kept finite and fixed. Our
Externí odkaz:
http://arxiv.org/abs/1610.09006
Akademický článek
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