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12 papers · 1 filter
Deformed Boson Scheme Stressing Even-Odd Boson Number Difference. II
A. Kuriyama, C. Providencia, J. da Providencia +2
The boson-pair coherent state developed in Part (I) is generalized to the case in which the state is a mixture of even-boson and odd-boson number states. A general framework is sho…
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…
Deformed Boson Scheme Stressing Even-Odd Boson Number Difference. I
A. Kuriyama, C. Providencia, J. da Providencia +2
An idea of the deformed boson scheme developed by the present authors is applied to the case of boson-pair coherent state. In this state, even and odd boson number difference is st…
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…