arXiv subjects

Hiroaki Nakajima

Publications and source records attributed to Hiroaki Nakajima.

38 records · Page 3Linked to original sources

arXiv2002

Low-Energy Dynamics of Noncommutative CP^1 Solitons in 2+1 Dimensions

We investigate the low-energy dynamics of the BPS solitons of the noncommutative CP^1 model in 2+1 dimensions using the moduli space metric of the BPS solitons. We show that the dynamics of a single soliton coincides with that in the commutative model. We find that the singularity in the two-soliton moduli space, which exists in the commutative CP^1 model, disappears in the noncommutative model.We also show that the two-soliton metric has the smooth commutative limit.

hep-th↗

arXiv2001

Supersymmetic Extension of the Non-Abelian Scalar-Tensor Duality

The field theory dual to the Freedman-Townsend model of a non-Abelian anti-symmetric tensor field is a nonlinear sigma model on the group manifold G. This can be extended to the duality between the Freedman-Townsend model coupled to Yang-Mills fields and a nonlinear sigma model on a coset space G/H. We present the supersymmetric extension of this duality, and find that the target space of this nonlinear sigma model is a complex coset space, GC/HC.

hep-th↗