Results 51 to 60 of about 1,088 (209)
Low-dimensional de Sitter quantum gravity
Journal 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
Characterization of Dust in Saturn's Rings Using Cassini Spacecraft Data
Journal 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
Frontiers 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
Towards the Particle Spectrum, Tickled by a Distant Massive Object
AstronomyTo investigate the gravitational effects of massive objects on a typical observer, we studied the dynamics of a test particle following BMS3 geodesics.
Mehdi Dehghani +2 more
doaj +1 more source
Deforming the Double‐Scaled SYK and Reaching the Stretched Horizon From Finite Cutoff Holography
Fortschritte 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
Gauge Theories and Holisms [PDF]
, 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
Path integral quantization and stochastic quantization
, 2009 Gives an overview of path integral quantization and stochastic quantization of classical mechanics and field theory. This title describes the non-Abelian gauge field, the gravitational field, and the path integral representation of quantum statistical ...
Masujima, Michio
core +1 more source
Unification of Thermal and Quantum Noises in Gravitational-Wave Detectors
, 2023 Contemporary gravitational-wave detectors are fundamentally limited by thermal noise-due to dissipation in the mechanical elements of the test mass-and quantum noise-from the vacuum fluctuations of the optical field used to probe the test-mass position ...
Whittle, Chris +7 more
core +1 more source
Field Programmable Gate Array‐Based Control Systems for Highly Stable Laser Applications
Advanced Photonics Research, Volume 7, Issue 4, April 2026.This review highlights the transition from analog to FPGA‐based digital architectures for laser frequency stabilization, noting their superior latency and flexibility. It focuses on Modulation Transfer Spectroscopy (MTS) as a robust, background‐free method for high‐precision locking that minimizes residual amplitude modulation.
Prosenjit Majumder, Rakesh Tirupathi
wiley +1 more source
The Relevance of Irrelevance: Absolute Objects and the Jones-Geroch Dust Velocity Counterexample, with a Note on Spinors [PDF]
, 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