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5 papers · 1 filter
Energy Centroids in the presence of random interactions
Y. M. Zhao, A. Arima, N. Yoshida +3
In this paper we study energy centroids such as those with fixed spin and isospin, those with fixed irreducible representations for bosons, in the presence of random two-body and/o…
On Parametric Resonance in Quantum Many-Body System
Y. Tsue, J. da Providencia, A. Kuriyama +1
The dynamics governed by a requantized collective Hamiltonian in the coupled Lipkin model is investigated in the time-dependent variational approach with squeezed state. It is poin…
Deformed Boson Scheme Stressing Even-Odd Boson Number Difference. III
A. Kuriyama, C. Providencia, J. da Providencia +2
A basic idea is proposed for extending the formalism of Part (II) of the series of our paper to the case of the parameter-dependent deformation. It is stressed that, through this e…
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…
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…