140 citations · 357 across the 9 of their papers we have counts for
9 papers
Gauge theory and little gauge theory
Kozo Koizumi
The gauge theory is the most important type of the field theory, in which the interactions of the elementary particles are described by the exchange of the gauge bosons.In this art…
Current Algebras and QP Manifolds
Noriaki Ikeda, Kozo Koizumi
Generalized current algebras introduced by Alekseev and Strobl in two dimensions are reconstructed by a graded manifold and a graded Poisson brackets. We generalize their current a…
Toda Molecule and Tomimatsu-Sato Solution Towards the complete proof of Nakamura's conjecture
Takeshi Fukuyama, Kozo Koizumi
We discuss the Nakamura's conjecture stating that the Tomimatsu-Sato black hole solution with integer deformation parameter is composed of the special solutions of the Toda mol…
q-Deformed Onsager symmetry in boundary integrable models related to twisted U symmetry
Kozo Koizumi
We consider an unified model, called ancestor model, associated with twisted trigonometric matrix which model leads to several descendant integrable lattice models related to t…
Exact spectrum of the XXZ open spin chain from the q-Onsager algebra representation theory
P. Baseilhac, K. Koizumi
The transfer matrix of the XXZ open spin-1/2 chain with general integrable boundary conditions and generic anisotropy parameter (q is not a root of unity and |q|=1) is diagonalized…
A deformed analogue of Onsager's symmetry in the XXZ open spin chain
P. Baseilhac, K. Koizumi
The XXZ open spin chain with general integrable boundary conditions is shown to possess a q-deformed analogue of the Onsager's algebra as fundamental non-abelian symmetry which ens…
A new (in)finite dimensional algebra for quantum integrable models
P. Baseilhac, K. Koizumi
A new (in)finite dimensional algebra which is a fundamental dynamical symmetry of a large class of (continuum or lattice) quantum integrable models is introduced and studied in det…
N=2 boundary supersymmetry in integrable models and perturbed boundary conformal field theory
P. Baseilhac, K. Koizumi
Boundary integrable models with N=2 supersymmetry are considered. For the simplest boundary N=2 superconformal minimal model with a Chebyshev bulk perturbation we show explicitly h…
Sine-Gordon quantum field theory on the half-line with quantum boundary degrees of freedom
P. Baseilhac, K. Koizumi
The sine-Gordon model on the half-line with a dynamical boundary introduced by Delius and one of the authors is considered at quantum level. Classical boundary conditions associate…