52 citations · 77 across the 4 of their papers we have counts for
3 papers · 1 filter
Spiky strings in de Sitter space
Mitsuhiro Kato, Kanji Nishii, Toshifumi Noumi +2
We study semiclassical spiky strings in de Sitter space and the corresponding Regge trajectories, generalizing the analysis in anti-de Sitter space. In particular we demonstrate th…
String Regge trajectory in de Sitter space and implications for inflation
Toshifumi Noumi, Toshiaki Takeuchi, Siyi Zhou
We study the spectrum of semiclassical rotating strings in de Sitter space and its consistency. Even though a naive extrapolation of the linear Regge trajectory on flat space impli…
Momentum space conformal three-point functions of conserved currents and a general spinning operator
Hiroshi Isono, Toshifumi Noumi, Toshiaki Takeuchi
We construct conformal three-point functions in momentum space with a general tensor and conserved currents of spin and . While conformal correlators in momentum space have…