Results 31 to 40 of about 9,886 (203)

Femtosecond imaging of spatial deformation of surface plasmon polariton wave packet during resonant interaction with nanocavity

open access: yesNanophotonics, Volume 11, Issue 7, Page 1321-1333, March 2022., 2022
Abstract The spatiotemporal dynamics of a surface plasmon polariton (SPP) wave packet (WP) that interacts with a plasmonic nanocavity on a metal surface are investigated via femtosecond time‐resolved two‐photon fluorescence microscopy and numerical calculations.
Naoki Ichiji, Yuka Otake, Atsushi Kubo
wiley   +1 more source

Comments on the superluminal motion in Cygnus X-3 [PDF]

open access: yes, 1996
Following the recent discovery that Cyg X-3 exhibits superluminal motion, the implications of superluminal expansion and contraction are investigated. We propose that the effect is due to either a propagating photon pattern or to outwardly moving shells ...
Burnell, S. J. Bell   +2 more
core   +2 more sources

Superluminal Motions: The First 100 Sources [PDF]

open access: yesSymposium - International Astronomical Union, 1996
First results from a large homogeneous superluminal motion survey are presented. The data do not show compelling evidence for the existence of intrinsically different populations of galaxies, BL Lac objects, or quasars. βapp in the range 1–5 h–1 occur with roughly equal frequency; higher values, up to βapp = 10 h–1, are rather more scarce than appeared
openaire   +1 more source

Charged spinning and magnetized test particles orbiting quantum improved charged black holes

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In the present work, we aimed to investigate the dynamics of spinning charged and magnetized test particles around both electrically and magnetically charged quantum-improved black holes.
Jose Miguel Ladino   +4 more
doaj   +1 more source

On Localized "X-shaped" Superluminal Solutions to Maxwell Equations [PDF]

open access: yes, 1998
In this paper we extend for the case of Maxwell equations the "X-shaped" solutions previously found in the case of scalar (e.g., acoustic) wave equations.
Brittingham   +11 more
core   +2 more sources

k-Inflation-corrected Einstein-Gauss-Bonnet gravity with massless primordial gravitons

open access: yesNuclear Physics B, 2021
In the present paper, we study the inflationary phenomenology of a k-inflation corrected Einstein-Gauss-Bonnet theory. Non-canonical kinetic terms are known for producing Jean instabilities or superluminal sound wave velocities in the aforementioned era,
S.D. Odintsov   +2 more
doaj   +1 more source

The milliarcsecond-scale jet of PKS 0735+178 during quiescence [PDF]

open access: yes, 2006
We present polarimetric 5 GHz to 43 GHz VLBI observations of the BL Lacertae object PKS 0735+178, spanning March 1996 to May 2000. Comparison with previous and later observations suggests that the overall kinematic and structural properties of the jet ...
A. Alberdi   +30 more
core   +2 more sources

Erratic Jet Wobbling in the BL Lacertae Object OJ287 Revealed by Sixteen Years of 7mm VLBA Observations [PDF]

open access: yes, 2011
We present the results from an ultra-high-resolution 7mm Very Long Baseline Array (VLBA) study of the relativistic jet in the BL Lacertae object OJ287 from 1995 to 2011 containing 136 total intensity images. Analysis of the image sequence reveals a sharp
Agudo   +39 more
core   +3 more sources

Closed timelike curves and chronology protection in quantum and classical simulators [PDF]

open access: yes, 2020
In principe, General Relativity seems to allow the existence of closed timelike curves (CTC). However, when quantum effects are considered, it is likely that their existence is prevented by some kind of chronological protection mechanism, as Hawking ...
Martín-Vázquez, Gonzalo   +1 more
core   +2 more sources

Nonlocal Interferences Induced by the Phase of the Wavefunction for a Particle in a Cavity with Moving Boundaries

open access: yesQuantum Reports, 2020
We investigate the dynamics of a particle in a confined periodic system—a time-dependent oscillator confined by infinitely high and moving walls—and focus on the evolution of the phase of the wavefunction.
Mordecai Waegell, Alex Matzkin
doaj   +1 more source

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