359 citations · 2.7k across the 60 of their papers we have counts for
6 papers · 1 filter
Finite Bubble Statistics Constrain Late Cosmological Phase Transitions
Gilly Elor, Ryusuke Jinno, Soubhik Kumar +2
We consider first order cosmological phase transitions (PT) happening at late times, below Standard Model (SM) temperatures GeV. The inherently stochastic nat…
Testing multi-field inflation with LiteBIRD
Ryusuke Jinno, Kazunori Kohri, Takeo Moroi +2
We investigate expected constraints on the primordial tensor power spectrum from the future cosmic microwave background polarization experiment LiteBIRD as a test of multi-field in…
Super-slow phase transition catalyzed by BHs and the birth of baby BHs
Ryusuke Jinno, Jun'ya Kume, Masaki Yamada
We discuss the unique phenomenology of first-order phase transitions catalyzed by primordial black holes (BHs). If the number of BHs within one Hubble volume is smaller than unity…
Quartic Gradient Flow
Muzi Hong, Ryusuke Jinno
Saddle-point configurations, such as the Euclidean bounce and sphalerons, are known to be difficult to find numerically. In this Letter we study a new method, Quartic Gradient Flow…
Borel resummation of secular divergences in stochastic inflation
Masazumi Honda, Ryusuke Jinno, Lucas Pinol +1
We make use of Borel resummation to extract the exact time dependence from the divergent series found in the context of stochastic inflation. Correlation functions of self-interact…
Gravitational waves from defect-driven phase transitions: domain walls
Simone Blasi, Ryusuke Jinno, Thomas Konstandin +2
We discuss the gravitational wave spectrum produced by first-order phase transitions seeded by domain wall networks. This setup is important for many two-step phase transitions as…