Results 21 to 30 of about 50,464 (300)
Journal of High Energy PhysicsOver the past three decades, it has been shown that discrete and continuous media can support topologically nontrivial waves. Recently, it was shown that the same is true of the vacuum, in particular, right (R) and left (L) circularly polarized photons ...
E. Palmerduca, H. Qin
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Graviton detection and the quantization of gravity [PDF]
Physical Review D, 2023 We revisit a question asked by Dyson:"Is a graviton detectable?"We demonstrate that in both Dyson's original sense and in a more modern measurement-theoretic sense, it is possible to construct a detector sensitive to single gravitons, and in fact a ...
D. Carney, V. Domcke, N. L. Rodd
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Graviton self-energy from gravitons in cosmology* [PDF]
Classical and Quantum Gravity, 2021 Abstract Although matter contributions to the graviton self-energy − i [
L Tan, N C Tsamis, R P Woodard
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Gravitational effective field theory islands, low-spin dominance, and the four-graviton amplitude [PDF]
Journal of Physics A: Mathematical and Theoretical, 2021 We analyze constraints from perturbative unitarity and crossing on the leading contributions of higher-dimension operators to the four-graviton amplitude in four spacetime dimensions, including constraints that follow from distinct helicity ...
Z. Bern +2 more
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The Challenge of Ruling Out Inflation via the Primordial Graviton Background [PDF]
Astrophysical Journal Letters, 2022 Recent debates around the testability of the inflationary paradigm raise the question of how to model-independently discriminate it from competing scenarios.
S. Vagnozzi, A. Loeb
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Graviton scattering in self-dual radiative space-times [PDF]
Classical and quantum gravity, 2022 The construction of amplitudes on curved space-times is a major challenge, particularly when the background has non-constant curvature. We give formulae for all tree-level graviton scattering amplitudes in curved self-dual (SD) radiative space-times ...
T. Adamo, L. Mason, A. Sharma
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Newton, entanglement, and the graviton [PDF]
Physical Review D, 2021 Many experiments have recently been proposed to test whether non-relativistic gravitational interactions can generate entanglement. In this note, I consider the extent to which these experiments can test if the graviton exists.
D. Carney
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Communications in Mathematical Physics, 2011 42 pages, 8 ...
Sergey A. Cherkis
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Lorentzian Quantum Gravity and the Graviton Spectral Function. [PDF]
Physical Review Letters, 2021 We present the first direct and nonperturbative computation of the graviton spectral function in quantum gravity. This is achieved with the help of a novel Lorentzian renormalization group approach, combined with a spectral representation of correlation ...
Jannik Fehre +3 more
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Graviton partial waves and causality in higher dimensions [PDF]
Physical Review D, 2022 Do gravitational interactions respect the basic principles of relativity and quantum mechanics? We show that any graviton S-matrix that satisfies these assumptions cannot significantly differ from General Relativity at low energies.
S. Caron-Huot +3 more
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