From the 1 of 12 linked papers with an AI index.
1 citations · 1 across the 2 of their papers we have counts for
12 papers
Particle Production via Rippled Bubble Walls
Ryusuke Jinno, Shota Nakagawa, Yuichiro Nakai +1
The paper studies how spatial ripples on ultra‑relativistic thick bubble walls during a first‑order phase transition can boost the non‑thermal production of heavy particles, introd…
Axion-photon conversion in stochastic magnetic fields
Wataru Chiba, Ryusuke Jinno, Kimihiro Nomura
We investigate axion-photon conversion in stochastic magnetic fields, focusing on the evolution of the photon intensity and polarizations induced by conversion into axions. Assumin…
Curvature Perturbations from First-Order Phase Transitions: Implications to Black Holes and Gravitational Waves
Gabriele Franciolini, Yann Gouttenoire, Ryusuke Jinno
Understanding whether primordial black holes form during strong first-order phase transition (FOPT) is a crucial open question in cosmology. We address this using a fully covariant…
A positive definite formulation of vacuum decay with reduced symmetry
José R. Espinosa, Ryusuke Jinno, Thomas Konstandin +2
The Euclidean bounce for vacuum decay enjoys an symmetry that is lost in the presence of impurities than can catalyze the decay. We present a formulation for the calculation…
Cancellation of loop corrections to soft scalar power spectrum
Yohei Ema, Muzi Hong, Ryusuke Jinno +1
We prove the absence of scale-invariant one-loop corrections to the superhorizon curvature perturbations from small-scale (potentially enhanced) scalar perturbations in a general i…
Gravitational Waves from Feebly Interacting Particles in a First Order Phase Transition
Ryusuke Jinno, Bibhushan Shakya, Jorinde van de Vis
First order phase transitions are well-motivated and extensively studied sources of gravitational waves (GWs) from the early Universe. The vacuum energy released during such transi…