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5 papers · 2 filters
Internal One-Particle Density Matrix for Bose-Einstein Condensates with Finite Number of Particles in a Harmonic Potential
Taiichi Yamada, Yasuro Funaki, Hisashi Horiuchi +3
Investigations on the internal one-particle density matrix in the case of Bose-Einstein condensates with a finite number () of particles in a harmonic potential are performed. W…
Deformed quasiparticle-random-phase approximation for neutron-rich nuclei using the Skyrme energy density functional
Kenichi Yoshida, Nguyen Van Giai
We develop a new framework of the deformed quasiparticle-random-phase approximation (QRPA) where the Skyrme density functional and the density-dependent pairing functional are cons…
Alpha-particle condensation in 16O via a full four-body OCM calculation
Y. Funaki, T. Yamada, H. Horiuchi +3
In order to explore the 4 α-particle condensate state in 16O, we solve a full four-body equation of motion based on the 4 αOCM (Orthogonality Condition Model) in a large 4 αmodel s…
Low-frequency modes in deformed neutron-rich nuclei: Pairing- and -vibrational modes of neutron
Kenichi Yoshida, Masayuki Yamagami
Low-frequency states in deformed neutron-rich nuclei are investigated by means of the quasiparticle-random-phase approximation based on the Hartree-Fock-Bogoliubov form…
Density-induced suppression of the alpha-particle condensate in nuclear matter and the structure of alpha cluster states in nuclei
Y. Funaki, H. Horiuchi, G. Röpke +3
At low densities, with decreasing temperatures, in symmetric nuclear matter alpha-particles are formed, which eventually give raise to a quantum condensate with four-nucleon alpha-…