Results 71 to 80 of about 50,464 (300)
Graviton mass and memory [PDF]
The European Physical Journal C, 2019 Gravitational memory, a residual change, arises after a finite gravitational wave pulse interacts with free masses. We calculate the memory effect in massive gravity as a function of the graviton mass $(m_g)$ and show that it is discretely different from the result of general relativity: the memory is reduced not just via the usual expected Yukawa ...
Kilicarslan, Ercan, Tekin, Bayram
openaire +5 more sources
Unitarizing infinite-range forces: Graviton-graviton scattering, the graviball, and Coulomb scattering [PDF]
EPJ Web of Conferences, 2022 We study graviton-graviton scattering in partial-wave amplitudes after unitarizing their Born terms. In order to apply S -matrix techniques, based on unitarity and analyticity, we introduce an S -matrix associated to this resummation that is free of ...
Oller José Antonio
doaj +1 more source
On-shell electric-magnetic duality and the dual graviton [PDF]
Physical Review D, 2020 Using on-shell amplitude methods, we explore 4-dimensional Electric-Magnetic duality and its double copy. We show explicitly that the on-shell scattering amplitudes know about `dual' photons (and dual gravitons), that the off-shell photon propagator ...
Nathan Moynihan, Jeff Murugan
semanticscholar +1 more source
Massless positivity in graviton exchange [PDF]
Physical Review D, 2020 We formulate Positivity Bounds for scattering amplitudes including exchange of massless particles. We generalize the standard construction through dispersion relations to include the presence of a branch cut along the real axis in the complex plane for ...
M. Herrero-Valea +2 more
semanticscholar +1 more source
Classical proof of the classical soft graviton theorem in D>4 [PDF]
Physical Review D, 2019 The classical soft graviton theorem gives an expression for the spectrum of low frequency gravitational radiation, emitted during a classical scattering process, in terms of the trajectories and spin angular momenta of ingoing and outgoing objects ...
Alok Laddha, A. Sen
semanticscholar +1 more source
GR uniqueness and deformations [PDF]
, 2015 In the metric formulation gravitons are described with the parity symmetric $S_+^2\otimes S_-^2$ representation of Lorentz group. General Relativity is then the unique theory of interacting gravitons with second order field equations.
Krasnov, Kirill
core +1 more source
Probing GHz gravitational waves with graviton–magnon resonance [PDF]
The European Physical Journal C, 2019 A novel method for extending the frequency frontier in gravitational wave observations is proposed. It is shown that gravitational waves can excite a magnon.
Asuka Ito, T. Ikeda, K. Miuchi, J. Soda
semanticscholar +1 more source
International Journal of Modern Physics D, 2020 We show that when the gravitational field is treated quantum-mechanically, it induces fluctuations — noise — in the lengths of the arms of gravitational wave detectors. The characteristics of the noise depend on the quantum state of the gravitational field and can be calculated exactly in several interesting cases.
Parikh, M, Wilczek, Frank, Zahariade, G
openaire +4 more sources
Scalar resonance in graviton-graviton scattering at high-energies: The graviball
Physics Letters B, 2022 We study graviton-graviton scattering in partial-wave amplitudes after unitarizing their Born terms. In order to apply S-matrix techniques, based on unitarity and analyticity, we introduce an S-matrix associated to this resummation that is free of ...
D. Blas, J. Martin Camalich, J.A. Oller
doaj +1 more source
Angular momentum content of a virtual graviton
, 2005 We show that a virtual graviton has a J=0 component, which serves to cancel the J=2, J_z=0 component when the graviton is on shell. In contrast, a massive graviton has no J=0 component either on or off shell.
Dicus, Duane, Willenbrock, Scott
core +1 more source