31 citations · 231 across the 41 of their papers we have counts for
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Light fermion masses in partially deconstructed models
Nahomi Kan, Kiyoshi Shiraishi, Maki Takeuchi
Considering a theory space consisting of a large number of five-dimensional Dirac fermion field theories including background abelian gauge fields, we can construct a theory simila…
Dynamical mass generation of spin-2 fields in de Sitter space for an symmetric model at large
Nahomi Kan, Kiyoshi Shiraishi
We consider the strong-coupling phase in a model of spin-2 field theory in de Sitter spacetime and the effective mass of spin-2 fields therein. In the strong-coupling phase,…
Discrete time heat kernel and UV modified propagators with Dimensional Deconstruction
Nahomi Kan, Kiyoshi Shiraishi
We revisit the dimensionally deconstructed scalar quantum electrodynamics and consider the (Euclidean) propagator of the scalar field in the model. Although we have previously inve…
Geometrical effective actions for a partially massless spin-2 field
Nahomi Kan, Takuma Aoyama, Kiyoshi Shiraishi
We consider nonlinear effective actions for a spin-2 field, whose `decoupling' limit gives Fierz-Pauli action in D dimensional maximally symmetric spacetime. We find, especially, t…
Hosotani mechanism in the "color"-singlet plasma
Nahomi Kan, Koichiro Kobayashi, Kiyoshi Shiraishi
By projecting the partition function on the "color"-singlet state, we investigate the Hosotani mechanism in the fermion-gauge boson plasma. The present toy-model analysis of the on…
Quantum fluctuation of stress tensor in a higher-derivative scalar field theory around a cosmic string
Nahomi Kan, Masashi Kuniyasu, Kiyoshi Shiraishi
We calculate the vacuum fluctuation of the stress tensor of a higher-derivative theory around a thin cosmic string. To this end, we adopt the method to obtain the stress tensor fro…