Results 51 to 60 of about 3,508 (162)

Lattice Boltzmann Simulation of Deformation and Breakup of a Droplet under Gravity Force Using Interparticle Potential Model [PDF]

open access: yesInternational Journal of Engineering, 2013
Abstract In this paper interparticle potential model of the lattice Boltzmann method (LBM) is used to simulate deformation and breakup of a falling droplet under gravity force. First this model is applied to ensure that the surface tension effect is properly implemented in this model. Two tests have been considered.
openaire   +1 more source

Scale invariance beyond criticality within the mean-field analysis of tensorial field theories

open access: yesJournal of High Energy Physics
We continue the series of articles on the application of Landau-Ginzburg mean-field theory to unveil the basic phase structure of tensorial field theories which are characterized by combinatorially non-local interactions.
Roukaya Dekhil   +3 more
doaj   +1 more source

Lessons from Toy-Models for the Dynamics of Loop Quantum Gravity

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
We review some approaches to the Hamiltonian dynamics of (loop) quantum gravity, the main issues being the regularization of the Hamiltonian and the continuum limit.
Valentin Bonzom, Alok Laddha
doaj   +1 more source

Ward identities and combinatorics of rainbow tensor models

open access: yesJournal of High Energy Physics, 2017
We discuss the notion of renormalization group (RG) completion of non-Gaussian Lagrangians and its treatment within the framework of Bogoliubov-Zimmermann theory in application to the matrix and tensor models. With the example of the simplest non-trivial
H. Itoyama, A. Mironov, A. Morozov
doaj   +1 more source

Poincare invariance in discrete gravity

open access: yesJournal of High Energy Physics
A formulation of discrete gravity was recently proposed based on defining a lattice and a shift operator connecting the cells. Spinors on such a space will have rotational SO(d) invariance which is taken as the fundamental symmetry.
Ali H. Chamseddine, Mariam Khaldieh
doaj   +1 more source

Discrete JT gravity as an Ising model

open access: yesJournal of High Energy Physics
Inspired by the program of discrete holography, we show that Jackiw-Teitelboim (JT) gravity on a hyperbolic tiling of Euclidean AdS2 gives rise to an Ising model on the dual lattice, subject to a topological constraint.
Johanna Erdmenger   +4 more
doaj   +1 more source

Smart holes: analogue black holes with the right temperature and entropy

open access: yesJournal of High Energy Physics
In analogue gravity studies, the goal is to replicate black hole phenomena, such as Hawking radiation, within controlled laboratory settings. In the realm of condensed matter systems, this may happen in 2D tilted Dirac cone materials based on honeycomb ...
Jiayue Yang   +4 more
doaj   +1 more source

The Construction of Spin Foam Vertex Amplitudes

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
Spin foam vertex amplitudes are the key ingredient of spin foam models for quantum gravity. These fall into the realm of discretized path integral, and can be seen as generalized lattice gauge theories.
Eugenio Bianchi, Frank Hellmann
doaj   +1 more source

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