14 citations
11 papers
Vortices as Instantons in Noncommutative Discrete Space: Use of Coordinates
Hideharu Otsu, Toshiro Sato, Hitoshi Ikemori +1
We show that vortices of Yang-Mills-Higgs model in space can be regarded as instantons of Yang-Mills model in space. For this, we construct the noncommu…
Non Abelian Vortices as Instantons on Noncommutative Discrete Space
Hitoshi Ikemori, Shinsaku Kitakado, Hideharu Otsu +1
There seems to be close relationship between the moduli space of vortices and the moduli space of instantons, which is not yet clearly understood from a standpoint of the field the…
Solitons of Sigma Model on Noncommutative Space as Solitons of Electron System
H. Otsu, T. Sato, H. Ikemori +1
We study the relationship of soliton solutions for electron system with those of the sigma model on the noncommutative space, working directly in the operator formalism. We find th…
Lost equivalence of nonlinear sigma and models on noncommutative space
H. Otsu, T. Sato, H. Ikemori +1
We show that the equivalence of nonlinear sigma and models which is valid on the commutative space is broken on the noncommutative space. This conclusion is arrived at thr…
New BPS Solitons in 2+1 Dimensional Noncommutative CP^1 Model
H. Otsu, T. Sato, H. Ikemori +1
Investigating the solitons in the non-commutative model, we have found a new set of BPS solitons which does not have counterparts in the commutative model.
Berry Connections and Induced Gauge Fields in Quantum Mechanics on Sphere
H. Ikemori, S. Kitakado, H. Otsu +1
Quantum mechanics on sphere is studied from the viewpoint that the Berry's connection has to appear as a topological term in the effective action. Furthermore we show that…