Results 21 to 30 of about 210,118 (339)

Gravitational breathing memory and dual symmetries

Journal of High Energy Physics, 2021
Brans-Dicke theory contains an additional propagating mode which causes homogeneous expansion and contraction of test bodies in transverse directions.
Ali Seraj
doaj   +1 more source

Multipole expansion of gravitational waves: from harmonic to Bondi coordinates

Journal of High Energy Physics, 2021
We transform the metric of an isolated matter source in the multipolar post-Minkowskian approximation from harmonic (de Donder) coordinates to radiative Newman-Unti (NU) coordinates.
Luc Blanchet, Geoffrey Compère, Guillaume Faye, Roberto Oliveri, Ali Seraj   +4 more
doaj   +1 more source

Gravitational waves [PDF]

Nuclear Physics B - Proceedings Supplements, 1994
In the last few years there have been a number of significant developments in research towards the detection of gravitational radiation from astronomical objects. The construction of 3 large-scale (3- or 4-km) interferometric detectors has been funded; new high-sensitivity bars are under construction; there is a serious proposal using two ...
openaire   +4 more sources

Gyroscopic gravitational memory

Journal of High Energy Physics, 2023
We study the motion of a gyroscope located far away from an isolated gravitational source in an asymptotically flat spacetime. As seen from a local frame tied to distant stars, the gyroscope precesses when gravitational waves cross its path, resulting in
Ali Seraj, Blagoje Oblak
doaj   +1 more source

TrackHHL: A Quantum Computing Algorithm for Track Reconstruction at the LHCb [PDF]

EPJ Web of Conferences
In the future high-luminosity LHC era, high-energy physics experiments face unprecedented computational challenges for event reconstruction. Employing the LHCb vertex locator as a case study we investigate a novel approach for charged particle track ...
Chiotopoulos Xenofon, Lucio Martinez Miriam, Nicotra Davide, de Vries Jacco A., Driessens Kurt, Merk Marcel, Winands Mark H.M.   +6 more
doaj   +1 more source

Low frequency electromagnetic radiation coming from gravitational waves generated by neutron stars [PDF]

, 2017
We investigate the possibility of observing very low frequency (VLF) electromagnetic radiation produced from the vacuum by gravitational waves. We review the calculations leading to the possibility of vacuum conversion of gravitational waves into ...
Gretarsson, Andri, Jones, Preston, Singleton, Douglas   +2 more
core   +3 more sources

Standard Model predictions for lepton flavour universality ratios of inclusive semileptonic B decays

Journal of High Energy Physics, 2022
We present Standard Model predictions for lepton flavour universality ratios of inclusive B → X(c) ℓ ν ¯ ℓ $$ \ell {\overline{\nu}}_{\ell } $$ . For the ℓ = μ, e, these ratios are very close to unity as expected.
Muslem Rahimi, K. Keri Vos
doaj   +1 more source

Simulating angular momentum of gravitational field of a rotating black hole and spin momentum of gravitational waves

Sistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2021
In this research, we simulated the angular momentum of gravitational field of a rotating black hole and the spin momentum of gravitational waves emitted from the black hole.
Yoshio Matsuki, Petro Bidyuk
doaj   +1 more source

Lunar Gravitational-wave Antenna

The Astrophysical Journal, 2021
Abstract Monitoring of vibrational eigenmodes of an elastic body excited by gravitational waves was one of the first concepts proposed for the detection of gravitational waves. At laboratory scale, these experiments became known as resonant bar detectors first developed by Joseph Weber in the 1960s.
Jan Harms, Filippo Ambrosino, Lorella Angelini, Valentina Braito, Marica Branchesi, Enzo Brocato, Enrico Cappellaro, Eugenio Coccia, Michael Coughlin, Roberto Della Ceca, Massimo Della Valle, Cesare Dionisio, Costanzo Federico, Michelangelo Formisano, Alessandro Frigeri, Aniello Grado, Luca Izzo, Augusto Marcelli, Andrea Maselli, Marco Olivieri, Claudio Pernechele, Andrea Possenti, Samuele Ronchini, Roberto Serafinelli, Paola Severgnini, Maila Agostini, Francesca Badaracco, Alessandro Bertolini, Lorenzo Betti, Marta Maria Civitani, Christophe Collette, Stefano Covino, Simone Dall’Osso, Paolo D’Avanzo, Riccardo DeSalvo, Matteo Di Giovanni, Mauro Focardi, Carlo Giunchi, Joris van Heijningen, Nandita Khetan, Daniele Melini, Giuseppe Mitri, Conor Mow-Lowry, Luca Naponiello, Vladimiro Noce, Gor Oganesyan, Emanuele Pace, Ho Jung Paik, Alessandro Pajewski, Eliana Palazzi, Marco Pallavicini, Giovanni Pareschi, Riccardo Pozzobon, Ashish Sharma, Giorgio Spada, Ruggero Stanga, Gianpiero Tagliaferri, Raffaele Votta   +57 more
openaire   +9 more sources

Energy Contents of Gravitational Waves in Teleparallel Gravity [PDF]

, 2009
The conserved quantities, that are, gravitational energy-momentum and its relevant quantities are investigated for cylindrical and spherical gravitational waves in the framework of teleparallel equivalent of General Relativity using the Hamiltonian ...
Ehlers J., M. SHARIF, Møller C., Nashed G. G. L., Sharif M., Sharif M., SUMAIRA TAJ, Synge J. L.   +7 more
core   +1 more source