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Statistical Relational Learning With Unconventional String Models [PDF]

open access: yesFrontiers in Robotics and AI, 2018
This paper shows how methods from statistical relational learning can be used to address problems in grammatical inference using model-theoretic representations of strings.
Mai H. Vu   +5 more
doaj   +2 more sources

String Sigma Models on Curved Supermanifolds

open access: yesUniverse, 2018
We use the techniques of integral forms to analyze the easiest example of two-dimensional sigma models on a supermanifold. We write the action as an integral of a top integral form over a D = 2 supermanifold, and we show how to interpolate between ...
Roberto Catenacci   +1 more
doaj   +3 more sources

Stability and vacuum energy in open string models with broken supersymmetry

open access: yesJournal of High Energy Physics, 2019
We construct type I string models with supersymmetry broken by compactifi- cation that are non-tachyonic and have exponentially small effective potential at one-loop.
Steven Abel   +3 more
doaj   +3 more sources

String breaking in a cold wind as seen by string models

open access: yesNuclear Physics B, 2022
Using the gauge/string duality, we model a heavy quark-antiquark pair in a color singlet state moving through a cold medium and explore the consequences of temperature and velocity on string breaking. In doing so, we restrict to the case of two dynamical
Oleg Andreev
doaj   +1 more source

Thraxions: towards full string models

open access: yesJournal of High Energy Physics, 2022
We elucidate various aspects of the physics of thraxions, ultra-light axions arising at Klebanov-Strassler multi-throats in the compactification space of IIB superstring theory.
Federico Carta   +3 more
doaj   +1 more source

Stringballs and Planckballs for dark matter

open access: yesJournal of High Energy Physics, 2022
As a follow up of the seminal work by Guiot, Borquez, Deur, and Werner on “Graviballs and Dark Matter”, we explicitly show that in string theory, local and nonlocal higher derivative theories, as well as general asymptotically-free or finite theories ...
Zhongyou Mo   +3 more
doaj   +1 more source

On “Lump mass torsional vibration model” and helical deformation of drill string

open access: yesPetroleum, 2021
This paper analyses the physical models in “Kapitaniak M, Hamaneh VV, Chávez JP, Nandakumar K, Wiercigroch M. Unveiling complexity of drill–string vibrations: experiments and modelling. International Journal of Mechanical Sciences 2015; 101–102: 324–327”.
Zifeng Li
doaj   +1 more source

On physical models in V.I. Gulyayev's three papers on drill string whirling and torsional vibrations

open access: yesPetroleum, 2020
This paper introduces physical models of drill string whirling and torsional vibrations and analyses the physical models in V.I. Gulyayev's three papers on drill string whirling and torsional vibrations: “V.I. Gulyayev, L.V.
Zifeng Li, Chaoyue Zhang, Guangming Song
doaj   +1 more source

Fine-tuned vs. natural supersymmetry: what does the string landscape predict?

open access: yesJournal of High Energy Physics, 2022
A vast array of (metastable) vacuum solutions arise from string compactifications, each leading to different 4-d laws of physics. The space of these solutions, known as the string landscape, allows for an environmental solution to the cosmological ...
Howard Baer   +3 more
doaj   +1 more source

Radiative natural supersymmetry emergent from the string landscape

open access: yesJournal of High Energy Physics, 2022
In string theory with flux compactifications, anthropic selection for structure formation from a discretuum of vacuum energy values provides at present our only understanding of the tiny yet positive value of the cosmological constant.
Howard Baer   +3 more
doaj   +1 more source

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