Results 71 to 80 of about 2,849,050 (231)

Might quantum-induced deviations from the Einstein equations detectably affect gravitational wave propagation?

open access: yes, 2013
A quantum measurement-like event can produce any of a number of macroscopically distinct results, with corresponding macroscopically distinct gravitational fields, from the same initial state. Hence the probabilistically evolving large-scale structure of
Kent, Adrian
core   +1 more source

Semianalytic calculation of gravitational wave spectrum nonlinearly induced from primordial curvature perturbations [PDF]

open access: yesPhysical Review D, 2018
Whether or not the primordial gravitational wave (GW) produced during inflation is sufficiently strong to be observable, GWs are necessarily produced from the primordial curvature perturbations in the second order of perturbation.
K. Kohri, T. Terada
semanticscholar   +1 more source

Accurate precision cosmology with redshift unknown gravitational wave sources [PDF]

open access: yes, 2020
Gravitational waves can provide an accurate measurement of the luminosity distance to the source but cannot provide the source redshift unless the degeneracy between mass and redshift can be broken.
S. Mukherjee   +3 more
semanticscholar   +1 more source

A Low-Jitter Delay Synchronization System Applied to Ti:sapphire Femtosecond Laser Amplifier

open access: yesApplied Sciences
Femtosecond lasers have evolved continuously over the past three decades, enabling the transition of research from fundamental studies in atomic and molecular physics to the realm of practical applications.
Mengyao Wu   +7 more
doaj   +1 more source

Electromagnetic follow-up of gravitational wave transient signal candidates

open access: yes, 2012
Pioneering efforts aiming at the development of multi-messenger gravitational wave and electromagnetic astronomy have been made. An electromagnetic observation follow-up program of candidate gravitational wave events has been performed (Dec 17 2009 to ...
Abadie J   +17 more
core   +1 more source

Gravitational wave detectors with broadband high frequency sensitivity

open access: yesCommunications Physics, 2021
Gravitational wave astronomy is on a path to increase the sensitivity and bandwidth of their detectors to afford the possibility to study a larger variety of sources and physical processes.
Michael A. Page   +12 more
doaj   +1 more source

Geometrical vs wave optics under gravitational waves [PDF]

open access: yes, 2015
We present some new derivations of the effect of a plane gravitational wave on a light ray. A simple interpretation of the results is that a gravitational wave causes a phase modulation of electromagnetic waves.
Angélil, Raymond, Saha, Prasenjit
core   +1 more source

Spin gravitational resonance and graviton detection

open access: yes, 2016
We develop a gravitational analogue of spin magnetic resonance, called spin gravitational resonance, whereby a gravitational wave interacts with a magnetic field to produce a spin transition. In particular, an external magnetic field separates the energy
Quach, James Q.
core   +1 more source

Primordial black holes—perspectives in gravitational wave astronomy [PDF]

open access: yes, 2018
This article reviews current understanding of primordial black holes (PBHs), with particular focus on those massive examples (≳1015 g) which remain at the present epoch, not having evaporated through Hawking radiation. With the detection of gravitational
M. Sasaki   +3 more
semanticscholar   +1 more source

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