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5 papers · 2 filters
Magnetization and dynamically induced finite densities in three-dimensional Chern-Simons QED
Taichi Itoh, Hiroshi Kato
In (2+1)-dimensional QED with a Chern-Simons term, we show that spontaneous magnetization occurs in the context of finite density vacua, which are the lowest Landau levels fully or…
On the Gauged Non-compact Spin System
Sung-Soo Kim, Phillial Oh
We examine classical and quantum aspects of the planar non-compact spin system coupled with Chern-Simons gauge field in the presence of background charge. We first define our class…
Integrable Extension of Nonlinear Sigma Model
Phillial Oh
We propose an integrable extension of nonlinear sigma model on the target space of Hermitian symmetric space (HSS). Starting from a discussion of soliton solutions of O(3) model an…
Dynamical Generation of Fermion Mass and Magnetic Field in Three-Dimensional QED with Chern-Simons Term
Taichi Itoh, Hiroshi Kato
We study dynamical symmetry breaking in three-dimensional QED with a Chern-Simons (CS) term, considering the screening effect of flavor fermions. We find a new phase of the vac…
Bogomolnyi Bound with a Cosmological Constant
Yoonbai Kim, Kyoungtae Kimm
Bogomolnyi-type bound is constructed for the topological solitons in O(3) nonlinear model coupled to gravity with a negative cosmological constant. Spacetimes made by self-dual…