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8 papers · 1 filter
On A Possible Scheme of q-Deformation of Many-Boson Systems in Time-Dependent Variational Method
A. Kuriyama, C. Providencia, J. da Providencia +2
A possible scheme of q-deformation, which was recently developed by the present authors, is reviewed by stressing the starting idea.
The su(1,1)-Algebraic Boson Model in the Deformed Boson Scheme
A. Kuriyama, C. Providencia, J. da Providencia +2
Following the deformed boson scheme leading to the su(1,1)-algebra, a certain simple boson system is deformed in the framework of the second Holstein-Primakoff representation. With…
Zn-induced wipeout effect on Cu NQR spectra in LaSrCuZnO
H. Yamagata, H. Miyamoto, K. Nakamura +2
We report a systematic study of Zn-substitution effect on Cu NQR spectrum for high superconductors LaSrCuZnO from carrier-underdoped to -overdoped…
Note on the Deformed Boson Scheme in Four Kinds of Boson Operators
A. Kuriyama, C. Providencia, J. da Providencia +2
The deformed boson scheme in four kinds of boson operators, which was recently proposed by the present authors, is supplemented by the T-type deformation closely related with the s…
Deformed Boson Scheme including Conventional q-Deformation in Time-Dependent Variational Method. IV
A. Kuriyama, C. Providencia, J. da Providencia +2
Basic idea presented in Parts (I)-(III) for the deformed boson scheme is applied to the case of the su(2)- and su(1,1)-algebras for describing many-body systems consisting of four…
Parametric Resonance versus Forced Oscillation in Time-Evolution of Quantum Meson Fields
Y. Tsue
The time-evolution of quantum meson fields in O(4)-linear sigma model is treated approximately. It is shown that the amplification of the amplitudes of pion modes with low momenta…