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8 papers · 1 filter
Fluctuation modes in color-superconductors
M. Iwasaki, K. Yamaguchi, O. Miyamura
We investigate fluctuation effects of a gap parameter in color-superconductors. The fluctuation modes in the super phase are described by two scalar fields of diquarks. One of them…
Note on the Deformed Boson Scheme in Time-Dependent Variational Method
A. Kuriyama, C. Providencia, J. da Providencia +2
The Holstein-Primakoff representation for the su(2)-algebra is derived in the deformed boson scheme. The following two points are discussed : (i) connection between a simple Hamilt…
Deformed Boson Scheme including Conventional q-Deformation in Time-Dependent Variational Method. III
A. Kuriyama, C. Providencia, J. da Providencia +2
Basic idea presented in Parts (I) and (II) for the deformed boson scheme is applied to the case of the su(2,1)-algebra for describing many-body systems consisting of three kinds of…
Phase transition of color-superconductivity and cooling behavior of quark stars
K. Yamaguchi, M. Iwasaki, O. Miyamura
We discuss the color-superconductivity and its effect on the cooling behavior of strange quark stars. The neutrino emissivity and specific heat of quark matter are calculated withi…
Deformed Boson Scheme in Time-Dependent Variational Method. II
A. Kuriyama, C. Providencia, J. da Providencia +2
In this paper as a continuation of Part I, the case of two kinds of boson operators is treated. The deformation of the coherent states for the su(2)- and the su(1,1)-algebra and th…
Deformed Boson Scheme in Time-Dependent Variational Method. I
A. Kuriyama, C. Providencia, J. da Providencia +2
Various aspects of the deformed boson scheme are investigated with aiming of applying to the time-dependent variational method for many-boson system. The case of the multiboson sta…