Results 91 to 100 of about 121,587 (192)

Pre-thermalized gravitational waves

Journal of High Energy Physics
We investigate a novel gravitational wave (GW) production mechanism from gravitons generated during the pre-thermal phase of cosmic reheating, where the energy density is dominated by non-thermalized inflaton decay products, dubbed reheatons. We consider
Nicolás Bernal, Quan-feng Wu, Xun-Jie Xu, Yong Xu   +3 more
doaj   +1 more source

Thermal gravitational waves during reheating

Journal of High Energy Physics
In this work, we revisit the generation of stochastic gravitational waves (GWs) from interactions in the thermal plasma. We extend the existing literature by incorporating the reheating phase into the thermal history.
Nicolás Bernal, Yong Xu
doaj   +1 more source

Cosmological amplitudes in power-law FRW universe

Journal of High Energy Physics
The correlators of large-scale fluctuations belong to the most important observables in modern cosmology. Recently, there have been considerable efforts in analytically understanding the cosmological correlators and the related wavefunction coefficients,
Bingchu Fan, Zhong-Zhi Xianyu
doaj   +1 more source

Quantum Gravity Spacetime: Universe vs. Multiverse. [PDF]

Entropy (Basel)
Tessarotto M, Cremaschini C.
europepmc   +1 more source

Information Storage in a Black Hole's Gravitational Field. [PDF]

Entropy (Basel)
He D, Li J, Qiu Q.
europepmc   +1 more source

Spectroscopic Supermassive Dark Star candidates. [PDF]

Proc Natl Acad Sci U S A
Ilie C, Mahmud SS, Paulin J, Freese K.
europepmc   +1 more source

Overview of the ESCAPE Dark Matter Test Science Project for astronomers. [PDF]

Open Res Eur
Pearson J, Dickinson H, Sinha S, Serjeant S.   +3 more
europepmc   +1 more source

Effects of modified woods saxon potential on quantum dynamics of spin 0 scalar particle in a cosmic string spacetime. [PDF]

Sci Rep
Ahmed F, Bouzenada A.
europepmc   +1 more source

Quantum Entanglement Asymmetry and the Cosmic Matter-Antimatter Imbalance: A Theoretical and Observational Analysis. [PDF]

Entropy (Basel)
Neukart F.
europepmc   +1 more source

Screened axio-dilaton cosmology: novel forms of early dark energy. [PDF]

Eur Phys J C Part Fields
Smith A, Brax P, Bruck CV, Burgess CP, Davis AC.   +4 more
europepmc   +1 more source