Results 1 to 10 of about 14,118 (206)

Sub-subleading soft graviton theorem in generic theories of quantum gravity [PDF]

open access: diamondJournal of High Energy Physics, 2017
We analyze scattering amplitudes with one soft external graviton and arbitrary number of other finite energy external states carrying arbitrary mass and spin to sub-subleading order in the momentum of the soft graviton. Our result can be expressed as the
Ashoke Sen
exaly   +5 more sources

Bootstrapping large graviton non-Gaussianities [PDF]

open access: yesJournal of High Energy Physics, 2022
Gravitational interferometers and cosmological observations of the cosmic microwave background offer us the prospect to probe the laws of gravity in the primordial universe.
Giovanni Cabass   +3 more
doaj   +2 more sources

Reconstructing the graviton [PDF]

open access: yesSciPost Physics, 2022
We reconstruct the Lorentzian graviton propagator in asymptotically safe quantum gravity from Euclidean data. The reconstruction is applied to both the dynamical fluctuation graviton and the background graviton propagator.
Alfio Bonanno, Tobias Denz, Jan M. Pawlowski, Manuel Reichert
doaj   +2 more sources

Subsubleading soft graviton symmetry and MHV graviton scattering amplitudes [PDF]

open access: yesJournal of High Energy Physics, 2021
In [8] it was shown that supertranslation and SL 2 ℂ ¯ $$ \overline{\mathrm{SL}\left(2,\mathbb{C}\right)} $$ current algebra symmetries, corresponding to leading and subleading soft graviton theorems, are enough to determine the tree level MHV graviton ...
Shamik Banerjee   +2 more
doaj   +2 more sources

Geometric fluctuation of conformal Hilbert spaces and multiple graviton modes in fractional quantum Hall effect. [PDF]

open access: yesNat Commun, 2023
Graviton modes are long-wavelength neutral collective excitations of fractional quantum Hall fluids that are analogous to gravitons. Here the authors develop a microscopic theory of multiple graviton modes and show that they are associated with geometric
Yuzhu W, Bo Y.
europepmc   +3 more sources

Selectivity matters: selective ROCK2 inhibitor ameliorates established liver fibrosis via targeting inflammation, fibrosis, and metabolism [PDF]

open access: yesCommunications Biology, 2023
The pathogenesis of hepatic fibrosis is driven by dysregulated metabolism precipitated by chronic inflammation. Rho-associated coiled-coil-containing protein kinases (ROCKs) have been implicated in these processes, however the ability of selective ROCK2 ...
Alexandra Zanin-Zhorov   +11 more
doaj   +2 more sources

Classical sub-subleading soft photon and soft graviton theorems in four spacetime dimensions [PDF]

open access: diamondJournal of High Energy Physics, 2020
Classical soft photon and soft graviton theorems determine long wavelength electromagnetic and gravitational waveforms for a general classical scattering process in terms of the electric charges and asymptotic momenta of the ingoing and outgoing ...
Biswajit Sahoo
openalex   +3 more sources

Finite N indices and the giant graviton expansion [PDF]

open access: yesJournal of High Energy Physics, 2023
The superconformal index of N $$ \mathcal{N} $$ = 4 super-Yang Mills theory with U(N) gauge group can be written as a matrix integral over the gauge group.
James T. Liu, Neville Joshua Rajappa
doaj   +2 more sources

Instability of Cauchy horizon induced by the graviton mass

open access: diamondPhysics Letters B
Massive gravitons are typically introduced to address cosmological issues such as dark energy. In the context of considering massless scalar field perturbations in a charged static black hole, our paper explores the impact of graviton mass on the ...
Lu Chen, Shun Jiang
doaj   +2 more sources

Gravitational wave from graviton Bremsstrahlung during reheating [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2023
We revisit graviton production via Bremsstrahlung from the decay of the inflaton during inflationary reheating. Using two complementary computational techniques, we first show that such 3-body differential decay rates differ from previously reported ...
Basabendu Barman   +3 more
semanticscholar   +1 more source

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