Publications (13)
PBH formation from overdensities in delayed vacuum transitions
Kiyoharu Kawana, TaeHun Kim, Philip Lu
Primordial black hole (PBH) formation from first-order phase transitions (FOPTs) combines two prevalent elements of beyond the Standard Model physics with wide-ranging consequences…
Q-Balls in the presence of attractive force
Yu Hamada, Kiyoharu Kawana, TaeHun Kim +1
Q-balls are non-topological solitons in field theories whose stability is typically guaranteed by the existence of a global conserved charge. A classic realization is the Friedberg…
Constraining the gravitational coupling of axion dark matter at LIGO
Sunghoon Jung, TaeHun Kim, Jiro Soda +1
The axion-gravity Chern-Simons coupling is well motivated but is relatively weakly constrained, partly due to difficult measurements of gravity. We study the sensitivity of LIGO me…
Probing Cosmic Strings with Gravitational-Wave Fringe
Sunghoon Jung, TaeHun Kim
Cosmic strings are important remnants of early-Universe phase transitions. We show that they can be probed by Gravitational Waves (GWs) from compact binary mergers. If such chirpin…
Emergent particles of de Sitter: thermal interpretation of the stochastic formalism and beyond
TaeHun Kim
A thermal interpretation of the stochastic formalism of a slow-rolling scalar field in de Sitter (dS) is given. We construct a correspondence between Hubble patches of dS and parti…
Hubble selection of the weak scale from QCD quantum critical point
Sunghoon Jung, TaeHun Kim
There is growing evidence that the small weak scale may be related to self-organized criticality. In this regard, we note that if the strange quark were lighter, the QCD phase tran…