Results 31 to 40 of about 50,464 (300)
The graviton four-point function in de Sitter space [PDF]
Journal of High Energy Physics, 2022 We compute the tree-level late-time graviton four-point correlation function, and the related quartic wavefunction coefficient, for Einstein gravity in de Sitter spacetime.
James Bonifacio +4 more
semanticscholar +1 more source
The shape of non-graviton operators for SU(2) [PDF]
Journal of High Energy Physics, 2022 The BPS spectrum of AdS/CFT exhibits multi-gravitons at low energies, while having black hole states at higher energies. This can be studied concretely in AdS5/CFT4 in terms of classical cohomologies, even in the quantum regimes at finite 1/N.
Sunjin Choi +3 more
semanticscholar +1 more source
Dark matter and dark energy denote the gravitation of the expanding universe
Frontiers in Physics, 2022 We reason that it is the gravitation of all ordinary matter, extending from the dense distant past to the sparse present, rather than dark matter, that shows up in galaxy rotation and velocity dispersion.
Arto Annila, Mårten Wikström
doaj +1 more source
Replacement of Space-Time with Superfluid Space and Restoration of Newton’s Dynamic Ether
Reports in Advances of Physical Sciences, 2023 Although it has been approximately 80 years since the graviton was theoretically predicted, it has not yet been discovered. To resolve this puzzle, this study developed a model wherein the gravitational force is incorporated into the fundamental ...
Amrit Srečko Šorli +2 more
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Universe, 2022 Probing the polarization of gravitational waves (GWs) would provide evidence of graviton, indicating the quantization of gravity. Motivated by the next generation of gravitational wave detectors, we make an attempt to study the possible helicity coupling
Qianfan Wu, Weishan Zhu, Longlong Feng
doaj +1 more source
Classical soft graviton theorem rewritten [PDF]
Journal of High Energy Physics, 2021 Classical soft graviton theorem gives the gravitational wave-form at future null infinity at late retarded time u for a general classical scattering. The large u expansion has three known universal terms: the constant term, the term proportional to 1 /u ...
Biswajit Sahoo, A. Sen
semanticscholar +1 more source
Quantizing the Non-linear Graviton [PDF]
Communications in Mathematical Physics, 2022 We consider holomorphic Poisson-BF theory on twistor space. Classically, this describes self-dual Einstein gravity on space-time, but at the quantum level it is plagued by an anomaly.
Roland Bittleston +2 more
semanticscholar +1 more source
Physical Review Letters, 2021 It is shown that the infinite tower of tree-level plus-helicity soft graviton symmetries in asymptotically flat 4D quantum gravity can be organized into a single chiral 2D Kac-Moody symmetry based on the wedge algebra of w_{1+∞}, which naturally acts on ...
A. Strominger
semanticscholar +1 more source
Twistor sigma models for quaternionic geometry and graviton scattering [PDF]
Advances in Theoretical and Mathematical Physics, 2021 We reformulate the twistor construction for hyper- and quaternion-K\"ahler manifolds, introducing new sigma models that compute scalar potentials for the geometry. These sigma models have the twistor space of the quaternionic manifold as their target and
T. Adamo, L. Mason, A. Sharma
semanticscholar +1 more source
Graviton particle statistics and coherent states from classical scattering amplitudes [PDF]
Journal of High Energy Physics, 2021 In the two-body scattering problem in general relativity, we study the final graviton particle distribution using a perturbative approach. We compute the mean, the variance and the factorial moments of the distribution from the expectation value of the ...
R. Britto, Riccardo Gonzo, Guy R. Jehu
semanticscholar +1 more source