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5 papers
Vector Mesons on the Light Front
K. Naito, S. Maedan, K. Itakura
We apply the light-front quantization to the Nambu--Jona-Lasinio model with the vector interaction, and compute vector meson's mass and light-cone wavefunction in the large N limit…
Spontaneous Symmetry Breaking in Discretized Light-Cone Quantization
K. Itakura, S. Maedan
Spontaneous symmetry breaking of the light-front Gross-Neveu model is studied in the framework of the discretized light-cone quantization. Introducing a scalar auxiliary field and…
Boson Expansion Methods in (1+1)-dimensional Light-Front QCD
Kazunori Itakura
We derive a bosonic Hamiltonian from two dimensional QCD on the light-front. To obtain the bosonic theory we find that it is useful to apply the boson expansion method which is the…
Instanton and QCD-monopole Trajectory in the Abelian Dominating System
H. Suganuma, K. Itakura, H. Toki
Correlation between instantons and QCD-monopoles is studied in the abelian-gauge-fixed QCD. From a simple topological consideration, instantons are expected to appear only around t…
Quantum Hamiltonian Reduction of the Schwinger Model
Kazunori Itakura, Koichi Ohta
We reexamine a unitary-transformation method of extracting a physical Hamiltonian from a gauge field theory after quantizing all degrees of freedom including redundant variables. W…