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5 papers · 2 filters
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…
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…
Two Contrastive Boson-Pair Coherent States in Deformed Boson Scheme
A. Kuriyama, C. Providencia, J. da Providencia +2
Two types of boson-pair coherent states, which were proposed independently by the present authors, are investigated. Main conclusion is as follows : Although the two states are sup…
On the Multiboson Coherent State in Deformed Boson Scheme
A. Kuriyama, C. Providencia, J. da Providencia +2
The treatment for the multiboson coherent state is extended for the completeness of the formulation. The basic idea for the extension is presented in terms of expanding the boson s…