2 papers
astro-ph.CO2026
Abundance of cosmic voids in EFT of dark energy
Toshiki Takadera, Shin'ichi Hirano, Tsutomu Kobayashi
Cosmic voids in the large-scale structure are among the useful probes for testing gravity on cosmological scales. In this paper, we investigate the evolution of voids in the Hornde…
astro-ph.CO2025
Stochastic gravitational wave background anisotropies from inflation with non-Bunch-Davies states
Shingo Akama, Shin'ichi Hirano, Shuichiro Yokoyama
It is known that stochastic gravitational wave backgrounds (SGWBs) have anisotropies generated by squeezed-type tensor non-Gaussianities originating from scalar-tensor-tensor (STT)…