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   Articles with "non riemannian" as a keyword



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Non-Riemannian isometries from double field theory

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recommendations! Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep04(2021)072

Abstract: Abstract We explore the notion of isometries in non-Riemannian geometries. Such geometries include and generalise the backgrounds of non-relativistic string theory, and they can be naturally described using the formalism of double field theory. Adopting… read more here.

Keywords: non riemannian; double field; theory; riemannian isometries ... See more keywords
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Dynamically generated inflationary two-field potential via non-Riemannian volume forms

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recommendations! Published in 2020 at "Nuclear Physics B"

DOI: 10.1016/j.nuclphysb.2019.114907

Abstract: Abstract We consider a simple model of modified gravity interacting with a single scalar field φ with weakly coupled exponential potential within the framework of non-Riemannian spacetime volume-form formalism. The specific form of the action… read more here.

Keywords: non riemannian; riemannian volume; field potential; field ... See more keywords
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The non-Riemannian nature of perceptual color space

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recommendations! Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"

DOI: 10.1073/pnas.2119753119

Abstract: Significance For over 100 y, the scientific community has adhered to a paradigm, introduced by Riemann and furthered by Helmholtz and Schrodinger, where perceptual color space is a three-dimensional Riemannian space. This implies that the… read more here.

Keywords: color space; non riemannian; color differences; color ... See more keywords
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Non-Riemannian generalizations of the Born–Infeld model and the meaning of the cosmological term

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recommendations! Published in 2017 at "International Journal of Geometric Methods in Modern Physics"

DOI: 10.1142/s0219887817501080

Abstract: Theory of gravitation based on a non-Riemannian geometry with dynamical torsion field is geometrically analyzed. To this end, the simplest Lagrangian density is introduced as a measure (reminiscent of a sigma model) and the dynamical… read more here.

Keywords: non riemannian; term; model; geometry ... See more keywords