Results 131 to 140 of about 50,464 (300)
A note on the double dual graviton [PDF]
Journal of Physics A: Mathematical and Theoretical, 2019 The (free) graviton admits, in addition to the standard Pauli-Fierz description by means of a rank-two symmetric tensor, a description in which one dualizes the corresponding -curvature tensor on one column to get a -tensor, where D is the spacetime ...
M. Henneaux, V. Lekeu, A. Leonard
semanticscholar +1 more source
Factorization and polarization in linearized gravity
, 1994 We investigate all the four-body graviton interaction processes: $gX\rightarrow \gamma X$, $gX\rightarrow gX$, and $gg\rightarrow gg$ with $X$ as an elementary particle of spin less than two in the context of linearized gravity except the spin-3/2 case ...
B. M. Barker +54 more
core +2 more sources
Product CFTs, gravitational cloning, massive gravitons and the space of gravitational duals [PDF]
, 2006 The question of graviton cloning in the context of the bulk/boundary correspondence is considered. It is shown that multi-graviton theories can be obtained from products of large-N CFTs. No more than one interacting massless graviton is possible.
+19 more
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Dark Energy From the Gravitational Wave Background With Scalar Field Dark Matter
Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.ABSTRACT Recent observational results, such as those from pulsar timing arrays (PTA), suggest a low‐frequency Gravitational Wave Background (GWB) permeates our universe. This opens the possibility that gravitational waves could span a broader spectrum, potentially impacting cosmological scales.
Edwin L. Pérez‐Ochoa, Tonatiuh Matos
wiley +1 more source
Mathematical Proceedings of the Cambridge Philosophical Society, 1979 1. There has been much interest recently in ‘instantons’. These correspond, in differential geometric terms, to connexions in principal bundles over Euclidean 4-space whose curvature satisfies the Yang-Mills equations. The connexion is also required to approach the trivial connexion at infinity.
openaire +2 more sources
Coupling Gravitons to Matter [PDF]
Physical Review Letters, 2000 Using relationships between open and closed strings, we present a construction of tree-level scattering amplitudes for gravitons minimally coupled to matter in terms of gauge theory partial amplitudes. In particular, we present examples of amplitudes with gravitons coupled to vectors or to a single fermion pair.
Z, Bern, A, De Freitas, H L, Wong
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Chaotic dynamics and bound violation in 4D EGB-AdS black holes with massive gravitons
Physics Letters BRecent interest in four-dimensional Einstein-Gauss-Bonnet (EGB) gravity has highlighted its novel modifications to gravitational dynamics, especially in strong-field regimes.
Anum Fayyaz +3 more
doaj +1 more source
Solar system versus gravitational-wave bounds on the graviton mass [PDF]
Classical and quantum gravity, 2018 The detection of gravitational waves from merging binary black holes has led to a bound on the mass of a hypothetical massive carrier of the gravitational interaction predicted by some modified gravity theories (a massive graviton, for short ...
C. Will
semanticscholar +1 more source
Pure connection formalism for gravity: Recursion relations [PDF]
, 2014 In the gauge-theoretic formulation of gravity the cubic vertex becomes simple enough for some graviton scattering amplitudes to be computed using Berends-Giele-type recursion relations. We present such a computation for the current with all same helicity
Delfino, Gianluca +2 more
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Probing the Wannier function of Crystalline Solids with Angle‐Resolved Photoemission Spectroscopy
Advanced Materials Interfaces, Volume 12, Issue 4, February 17, 2025.Angle‐resolved photoemission spectroscopy (ARPES) has been a widely adopted technique to investigate surface and shallow interface phenomena. An overwhelming majority of its use focuses on extracting the energy‐momentum dispersion (band structure) in momentum space.
Yu He +3 more
wiley +1 more source