3 papers
gr-qc2026
Nanohertz gravitational waves from domain walls nucleated during inflation
Zhi-Yong Huang, Tie-Jun Gao
We investigate scalar-induced gravitational waves (SIGWs) produced by domain walls (DWs) nucleated via quantum tunneling during inflation with an extended nucleation time. In contr…
astro-ph.CO2025
Gravitational waves from the E-model inflation with Gauss-Bonnet correction
Tie-Jun Gao, Jian-Xia Guo
In this work, we study the generation of gravitational waves in the E-model inflation with the scalar field non-minimally coupled to the Gauss-Bonnet term. Considering a wall-cross…
astro-ph.CO2025
Gravitational waves and primordial black holes from the T-model inflation with Gauss-Bonnet correction
Peng-Bo Chen, Tie-Jun Gao
Recently, the worldwide Pulsar Timing Array (PTA) collaborations detected a stochastic gravitational wave(GW) background in the nanohertz range, which may originate from the early…