Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Bodendorfer, Norbert"'
We apply the variational Monte Carlo method based on neural network quantum states, using a neural autoregressive flow architecture as our ansatz, to determine the ground state wave function of the bosonic SU($N$) Yang-Mills-type two-matrix model at
Externí odkaz:
http://arxiv.org/abs/2409.00398
Autor:
Pateloudis, Stratos, Bergner, Georg, Hanada, Masanori, Rinaldi, Enrico, Schäfer, Andreas, Vranas, Pavlos, Watanabe, Hiromasa, Bodendorfer, Norbert
We test the gauge/gravity duality between the matrix model and type IIA string theory at low temperatures with unprecedented accuracy. To this end, we perform lattice Monte Carlo simulations of the Berenstein-Maldacena-Nastase (BMN) matrix model, whi
Externí odkaz:
http://arxiv.org/abs/2210.04881
Autor:
Pateloudis, Stratos, Bergner, Georg, Bodendorfer, Norbert, Hanada, Masanori, Rinaldi, Enrico, Schäfer, Andreas
Publikováno v:
JHEP 08 (2022) 178
We test a conjecture by Maldacena and Milekhin for the ungauged version of the Berenstein-Maldacena-Nastase (BMN) matrix model by lattice Monte Carlo simulation. The numerical results reproduce the perturbative and gravity results in the limit of lar
Externí odkaz:
http://arxiv.org/abs/2205.06098
Autor:
Bergner, Georg, Bodendorfer, Norbert, Hanada, Masanori, Pateloudis, Stratos, Rinaldi, Enrico, Schäfer, Andreas, Vranas, Pavlos, Watanabe, Hiromasa
Publikováno v:
JHEP 05 (2022) 096
We study the confinement/deconfinement transition in the D0-brane matrix model (often called the BFSS matrix model) and its one-parameter deformation (the BMN matrix model) numerically by lattice Monte Carlo simulations. Our results confirm general e
Externí odkaz:
http://arxiv.org/abs/2110.01312
Publikováno v:
Phys. Rev. D 103, 126021 (2021)
A coarse graining technique akin to block spin transformations that groups together fiducial cells in a homogeneous and isotropic universe has been recently developed in the context of loop quantum cosmology. The key technical ingredient was an SU(1,
Externí odkaz:
http://arxiv.org/abs/2012.02068
Autor:
Bodendorfer, Norbert, Haneder, Fabian
A coarse graining operation of spatially homogeneous quantum states based on an SU(1,1) Lie group structure has recently been proposed in [1] and used in [2] to compute an explicit renormalisation group flow in the context of loop quantum cosmology.
Externí odkaz:
http://arxiv.org/abs/2011.12749
Autor:
Long, Gaoping, Bodendorfer, Norbert
A comprehensive study of the application of SO$(D+1)$ coherent states of Perelomov type to loop quantum gravity in general spacetime dimensions $D+1\geq 3$ is given in this paper. We focus on so-called simple representations of SO$(D+1)$ which solve
Externí odkaz:
http://arxiv.org/abs/2006.13122
Autor:
Watanabe, Hiromasa, Bergner, Georg, Bodendorfer, Norbert, Funai, Shotaro Shiba, Hanada, Masanori, Rinaldi, Enrico, Schäfer, Andreas, Vranas, Pavlos
Publikováno v:
J. High Energ. Phys. 2102 (2021) 004
We provide evidence for partial deconfinement -- the deconfinement of a SU($M$) subgroup of the SU($N$) gauge group -- by using lattice Monte Carlo simulations. We take matrix models as concrete examples. By appropriately fixing the gauge, we observe
Externí odkaz:
http://arxiv.org/abs/2005.04103
Publikováno v:
Class. Quantum Grav. 38 (2021) 095002
In the past years, black holes and the fate of their singularity have been heavily studied within loop quantum gravity. Effective spacetime descriptions incorporating quantum geometry corrections are provided by the so-called polymer models. Despite
Externí odkaz:
http://arxiv.org/abs/1912.00774
Publikováno v:
Physics Letters B 819 (2021) 136390
Quantum gravity effects in effective models of loop quantum gravity, such as loop quantum cosmology, are encoded in the choice of so-called polymerisation schemes. Physical viability of the models, such as an onset of quantum effects at curvature sca
Externí odkaz:
http://arxiv.org/abs/1911.12646