Results 61 to 70 of about 1,094 (212)

Characterization of Dust in Saturn's Rings Using Cassini Spacecraft Data

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract The dust distribution in Saturn's rings is investigated using dust impacts registered by the Radio and Plasma Wave Science (RPWS) instrument onboard the Cassini spacecraft. Dust impacts, recorded as spiky signals in electric field waveforms, are used to determine profiles of impact rates and amplitudes of spikes during individual equatorial ...
L. Nouzák   +7 more
wiley   +1 more source

Electric-Magnetic Duality in Gravity and Higher-Spin Fields

open access: yesFrontiers in Physics, 2019
Over the past two decades, electric-magnetic duality has made significant progress in linearized gravity and higher spin gauge fields in arbitrary dimensions.
Ashkbiz Danehkar
doaj   +1 more source

Low-dimensional de Sitter quantum gravity

open access: yesJournal of High Energy Physics, 2020
We study aspects of Jackiw-Teitelboim (JT) quantum gravity in two-dimensional nearly de Sitter (dS) spacetime, as well as pure de Sitter quantum gravity in three dimensions.
Jordan Cotler   +2 more
doaj   +1 more source

Gauge Theories and Holisms [PDF]

open access: yes, 2004
Those looking for holism in contemporary physics have focused their attention primarily on quantum entanglement. But some gauge theories arguably also manifest the related phenomenon of nonseparability.
Healey, Richard
core  

Chiral transport of pseudospinors induced by synthetic gravitational field in photonic Weyl metamaterials [PDF]

open access: yes, 2021
Weyl particles exhibit chiral transport property under external curved space-time geometry. This effect is called the chiral gravitational effect, which plays an important role in quantum field theory.
Zhang, Shuang   +5 more
core   +1 more source

Deforming the Double‐Scaled SYK and Reaching the Stretched Horizon From Finite Cutoff Holography

open access: yesFortschritte der Physik, Volume 74, Issue 5, May 2026.
ABSTRACT We study the properties of the double‐scaled SYK (DSSYK) model under chord Hamiltonian deformations based on finite cutoff holography for general dilaton gravity theories with Dirichlet boundaries. The formalism immediately incorporates a lower‐dimensional analog of TT¯(+Λ2)$\text{T}\overline{\text{T}}(+\Lambda _2)$ deformations, denoted T2 ...
Sergio E. Aguilar‐Gutierrez
wiley   +1 more source

The Relevance of Irrelevance: Absolute Objects and the Jones-Geroch Dust Velocity Counterexample, with a Note on Spinors [PDF]

open access: yes, 2005
James L. Anderson analyzed the conceptual novelty of Einstein's theory of gravity as its lack of ``absolute objects.'' Michael Friedman's related concept of absolute objects has been criticized by Roger Jones and Robert Geroch for implausibly admitting ...
Pitts, J. Brian, J. Brian Pitts
core  

The Nontriviality of Trivial General Covariance: How Electrons Restrict 'Time' Coordinates, Spinors (Almost) Fit into Tensor Calculus, and 7/16 of a Tetrad Is Surplus Structure [PDF]

open access: yes, 2011
It is a commonplace in the philosophy of physics that any local physical theory can be represented using arbitrary coordinates, simply by using tensor calculus. On the other hand, the physics literature often claims that spinors \emph{as such} cannot be
Pitts, J. Brian, J. Brian Pitts
core  

The Quantization and Renormalization of Gravitational Field

open access: yesApplied Physics Research, 2016
<p class="1Body">This paper analyses the root cause why there is not any self-consistent quantization scheme of gravity yet from Einstein's theory of gravity, proves the gravitational field is a gauge field and gives the quantization and renormalization scheme of the gravitational field.</p>
openaire   +2 more sources

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