9 citations · 9 across the 6 of their papers we have counts for
6 papers
High-frequency gravitational waves from axion inflation in the weak-backreaction regime
Xun-Jie Xu, Junyu Zhu
Axion inflation, characterized by a Chern-Simons interaction between the inflaton and a gauge field, provides a powerful mechanism for generating primordial gravitational waves (GW…
Probing Bose-enhanced Inflaton Decay with Gravitational Waves
Nicolás Bernal, Quan-feng Wu, Xun-Jie Xu +1
We investigate cosmic reheating dynamics in the presence of a transient condensate formed by bosonic decay products of the inflaton. We show that the emergence of such a condensate…
Strongly Coupled Quantum Forces
Yuval Grossman, Chinhsan Sieng, Xun-Jie Xu +1
Quantum forces are long-range interactions originating from vacuum fluctuations of mediator fields. Such forces inevitably arise between ordinary matter particles whenever they cou…
Full-Spectrum Analysis of Gravitational Wave Production from Inflation to Reheating
Xun-Jie Xu, Yong Xu, Qiqin Yin +1
In this work, we systematically study gravitational wave (GW) production during both the inflationary and post-inflationary epochs. While inflationary GWs can be readily derived fr…
Pre-thermalized Gravitational Waves
Nicolás Bernal, Quan-feng Wu, Xun-Jie Xu +1
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…
The neutrino force in neutrino backgrounds: Spin dependence and parity-violating effects
Mitrajyoti Ghosh, Yuval Grossman, Walter Tangarife +2
The neutrino force results from the exchange of a pair of neutrinos. A neutrino background can significantly influence this force. In this work, we present a comprehensive calculat…