4 papers
Monte Carlo study on Heisenberg model with local dipolar interaction
Etsuko Itou, Akira Matsumoto, Yu Nakayama +1
Aharony and Fisher showed that non-local dipolar effects in magnetism destabilize the Heisenberg fixed point in real ferromagnets, leading to a new fixed point, called the dipolar…
Computing theta-dependent mass spectrum of the 2-flavor Schwinger model in the Hamiltonian formalism
Akira Matsumoto, Etsuko Itou, Yuya Tanizaki
We compute the -dependent mass spectrum of the 2-flavor Schwingr model using the tensor network (DMRG) in the Hamiltonian formalism. The pion and the sigma meson are identified…
DMRG study of the theta-dependent mass spectrum in the 2-flavor Schwinger model
Etsuko Itou, Akira Matsumoto, Yuya Tanizaki
We study the -dependent mass spectrum of the massive -flavor Schwinger model in the Hamiltonian formalism using the density-matrix renormalization group(DMRG). The masses of…
Three ways of calculating mass spectra for the 2-flavor Schwinger model in the Hamiltonian formalism
Akira Matsumoto, Etsuko Itou, Yuya Tanizaki
We propose three independent methods to compute the hadron mass spectra of gauge theories in the Hamiltonian formalism. The determination of hadron masses is one of the key issues…