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- Kōchi UniversityJP206 papers
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10 papers · 1 filter
Nonequilibrium chiral dynamics by the time dependent variational approach with squeezed states
Naoko Ikezi, Masayuki Asakawa, Yasuhiko Tsue
We investigate the inhomogeneous chiral dynamics of the O(4) linear sigma model in 1+1 dimensions using the time dependent variational approach in the space spanned by the squeezed…
Latent heat in the chiral phase transition
Masaharu Iwasaki, Hiyoshi Kiuchi
The chiral phase transition at finite temperature and density is discussed in the framework of the QCD-like gauge field theory. The thermodynamical potential is investigated using…
A flux tube model for glueballs
Masaharu Iwasaki, Shin-Ichi Nawa, Takayoshi Sanada +1
We calculate the mass spectrum and the decay widths of glueballs in the flux tube model. The glueball is assumed to be a closed flux tube. The breathing motion and the rotational m…
Meissner effect in a charged Bose gas with short-range repulsion
Shun-ichiro Koh
The question of whether the BEC is a necessary condition of the Meissner effect is examined. The electromagnetic susceptibility of a charged Bose gas with short-range repulsion is…
Quantum gas-liquid condensation in an attractive Bose gas
Shun-ichiro Koh
Gas-liquid condensation (GLC) in an attractive Bose gas is studied on the basis of statistical mechanics. Using some results in combinatorial mathematics, the following are derived…
Cu Nuclear Quadrupole Resonance Study of La_{2-x}Sr_xCu_{1-y}Zn_yO_4 (x=0.10, 0.15 and 0.20): Zn-induced Wipeout Effect near the Magnetic and Electric Instability
H. Yamagata, H. Miyamoto, K. Nakamura +2
We studied Zn-substitution effect on the high-T_c superconductors, underdoped La_{2-x}Sr_xCu_{1-y}Zn_yO_4 (x=0.10; y=0, 0.01, 0.02), optimally doped (x=0.15; y=0, 0.02), and overdo…