Search Results - "Shaw, Douglas J"

New solution of the cosmological constant problems by Barrow, John D, Shaw, Douglas J

“…We extend the usual gravitational action principle by promoting the bare cosmological constant (CC) to a field which can take many possible values. Variation…”
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Strongly coupled chameleon fields: new horizons in scalar field theory by Mota, David F, Shaw, Douglas J

“…We show that, as a result of nonlinear self-interactions, scalar field theories that couple to matter much more strongly than gravity are not only viable but…”
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Testable solution of the cosmological constant and coincidence problems by Shaw, Douglas J., Barrow, John D.

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Harris Graphs-A Graph Theory Activity for Students and Their Instructors by Shaw, Douglas J.

“…We define Harris graphs and tell the tale of their discovery. A class can usually find a Harris graph in an hour, but usually not in fifteen minutes, making…”
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The value of the cosmological constant by Barrow, John D., Shaw, Douglas J.

“…We make the cosmological constant, Λ, into a field and restrict the variations of the action with respect to it by causality. This creates an additional…”
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Active galactic nuclei shed light on axionlike particles by Burrage, Clare, Davis, Anne-Christine, Shaw, Douglas J

“…We demonstrate that the scatter in the luminosity relations of astrophysical objects can be used to search for axionlike particles. This analysis is applied to…”
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Dark spinor models in gravitation and cosmology by Böhmer, Christian G., Burnett, James, Mota, David F., Shaw, Douglas J.

“…We introduce and carefully define an entire class of field theories based on non-standard spinors. Their dominant interaction is via the gravitational field…”
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On the Magnitude of Dark Energy Voids and Overdensities by Mota, David F, Shaw, Douglas J, Silk, Joseph

“…We investigate the clustering of dark energy within matter overdensities and voids. In particular, we derive an analytical expression for the dark energy…”
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Active Galactic Nuclei Shed Light on Axionlike Particles by Burrage, Clare, Davis, Anne-Christine, Shaw, Douglas J.

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Local experiments see cosmologically varying constants by Shaw, Douglas J., Barrow, John D.

“…We describe a rigorous matched asymptotic expansion, which establishes under very general conditions that local terrestrial and solar-system experiments will…”
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Charge non-conservation, dequantisation, and induced electric dipole moments in varying-α theories by Shaw, Douglas J.

“…We note that in extensions of the Standard Model that allow for a varying fine structure constant, α, all matter species, apart from right-handed neutrinos,…”
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Modified gravity makes galaxies brighter by Davis, Anne-Christine, Lim, Eugene A., Sakstein, Jeremy, Shaw, Douglas J.

“…We investigate the effect of modified gravity with screening mechanisms, such as the chameleon or symmetron models, upon the structure of main sequence stars…”
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Linear growth of structure in the symmetron model by Brax, Philippe, van de Bruck, Carsten, Davis, Anne-Christine, Li, Baojiu, Schmauch, Benoit, Shaw, Douglas J.

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Observable effects of scalar fields and varying constants by Barrow, John D., Shaw, Douglas J.

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f ( R ) gravity and chameleon theories by Brax, Philippe, van de Bruck, Carsten, Davis, Anne-Christine, Shaw, Douglas J.

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Dilaton and modified gravity by Brax, Philippe, van de Bruck, Carsten, Davis, Anne-Christine, Shaw, Douglas

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Evading equivalence principle violations, cosmological, and other experimental constraints in scalar field theories with a strong coupling to matter by Mota, David F., Shaw, Douglas J.

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Detecting chameleons: The astronomical polarization produced by chameleonlike scalar fields by Burrage, Clare, Davis, Anne-Christine, Shaw, Douglas J.

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Microscopic and macroscopic behaviors of Palatini modified gravity theories by Li, Baojiu, Mota, David F., Shaw, Douglas J.

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Nonlinear structure formation with the environmentally dependent dilaton by Brax, Philippe, van de Bruck, Carsten, Davis, Anne-Christine, Li, Baojiu, Shaw, Douglas J.

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