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Are there testable discrete Poincaré invariant physical theories? [PDF]

open access: yesClassical and Quantum Gravity, 2018
In a model of physics taking place on a discrete set of points that approximates Minkowski space, one might perhaps expect there to be an empirically identifiable preferred frame. However, the work of Dowker et al (2004 Mod. Phys. Lett. A 19 1829-40) and Bombelli et al (2009 Mod. Phys. Lett.
openaire   +3 more sources

Scale-invariant Learning by Physics Inversion

open access: yes, 2021
Solving inverse problems, such as parameter estimation and optimal control, is a vital part of science. Many experiments repeatedly collect data and rely on machine learning algorithms to quickly infer solutions to the associated inverse problems.
Holl, Philipp   +2 more
openaire   +2 more sources

Preface

open access: yesEPJ Web of Conferences, 2016
I review the main features and some of the theoretical attempts to explain the excess around an invariant mass of 750 GeV seen in 2015 at the LHC in the di-photon channel. As this hint to new physics has now all but disappeared from the higher-luminosity
Bruno G.E.   +7 more
doaj   +1 more source

Lie Group Statistics and Lie Group Machine Learning Based on Souriau Lie Groups Thermodynamics & Koszul-Souriau-Fisher Metric: New Entropy Definition as Generalized Casimir Invariant Function in Coadjoint Representation

open access: yesEntropy, 2020
In 1969, Jean-Marie Souriau introduced a “Lie Groups Thermodynamics” in Statistical Mechanics in the framework of Geometric Mechanics. This Souriau’s model considers the statistical mechanics of dynamic systems in their “space of evolution” associated to
Frédéric Barbaresco
doaj   +1 more source

Weyl-invariant Einstein–Cartan gravity with a heavy ALP: Higgs inflation and α-attractors

open access: yesPhysics Letters B
We initiate the analysis of the inflationary dynamics in Weyl-invariant Einstein–Cartan gravity nonminimally coupled to the Standard Model of particle physics.
Georgios K. Karananas   +2 more
doaj   +1 more source

Breakdown of emergent Lifshitz symmetry in holographic matter with Harris-marginal disorder

open access: yesJournal of High Energy Physics, 2020
We revisit the theory of strongly correlated quantum matter perturbed by Harris-marginal random-field disorder, using the simplest holographic model. We argue that for weak disorder, the ground state of the theory is not Lifshitz invariant with a non ...
Koushik Ganesan, Andrew Lucas
doaj   +1 more source

The LHC di-photon excess at 750 GeV

open access: yesEPJ Web of Conferences, 2016
I review the main features and some of the theoretical attempts to explain the excess around an invariant mass of 750 GeV seen in 2015 at the LHC in the di-photon channel. As this hint to new physics has now all but disappeared from the higher-luminosity
Fabbrichesi Marco
doaj   +1 more source

Generalized Statistics on Lattices

open access: yesPhysical Review X
The statistics of particles and extended excitations, such as loops and membranes, are fundamental to modern condensed matter physics, high-energy physics, and quantum information science, yet a comprehensive lattice-level framework for computing them ...
Ryohei Kobayashi (小林良平)   +4 more
doaj   +1 more source

A Nonparametric Peak Finder Algorithm and Its Application in Searches for New Physics

open access: yesAdvances in High Energy Physics, 2013
We have developed an algorithm for nonparametric fitting and extraction of statistically significant peaks in the presence of statistical and systematic uncertainties.
S. V. Chekanov, M. Erickson
doaj   +1 more source

Applications of Symmetry Methods to the Theory of Plasma Physics

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2006
The theory of plasma physics offers a number of nontrivial examples of partial differential equations, which can be successfully treated with symmetry methods.
Giampaolo Cicogna   +2 more
doaj  

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