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  • Recently it has been shown that the O(6)-based Hamiltonian of the interacting boson model (IBM) with three-body interactions parallels the traditional SU(3) description of nuclear rotation in a way which is closely related to the Bohr-Mottelson model. Here we focus on properties of quantum phase transitions between prolate and oblate ground-state shapes induced by the sign inversion of the cubic interaction. The classical-limit analysis shows that the phase structure of our model is partly analogous to that of the standard IBM with only two-body interactions. A triple point of spherical, prolate and oblate phases is identified within the O(6) dynamical symmetry. Quadrupole shape invariants and wave-function overlaps are applied to measure the phase-transitional rate at a realistic number of bosons. (c) 2005 Elsevier B.V. All rights reserved.
  • Recently it has been shown that the O(6)-based Hamiltonian of the interacting boson model (IBM) with three-body interactions parallels the traditional SU(3) description of nuclear rotation in a way which is closely related to the Bohr-Mottelson model. Here we focus on properties of quantum phase transitions between prolate and oblate ground-state shapes induced by the sign inversion of the cubic interaction. The classical-limit analysis shows that the phase structure of our model is partly analogous to that of the standard IBM with only two-body interactions. A triple point of spherical, prolate and oblate phases is identified within the O(6) dynamical symmetry. Quadrupole shape invariants and wave-function overlaps are applied to measure the phase-transitional rate at a realistic number of bosons. (c) 2005 Elsevier B.V. All rights reserved. (en)
  • Nedávno bylo ukázáno,že Hamiltoniání metodu interagujících bosonů založený na grupě O(6)představuje k tradičnímu popisu jaderné rotace grupou SU(3)úkaz spojenou s Bohrovým a Mottelsonovým modelem.Zde se soustředujeme na kvantová fázový přechod mezi protáhlým a sploštělým tvarem indukovaný změnou kubické interakce. (cs)
Title
  • Prolate-oblate shape-phase transition in the O(6) description of nuclear rotation
  • Fázový přechod mezi protáhlým a sploštělým tvarem v O (6) popisu jaderné rotace (cs)
  • Prolate-oblate shape-phase transition in the O(6) description of nuclear rotation (en)
skos:prefLabel
  • Prolate-oblate shape-phase transition in the O(6) description of nuclear rotation
  • Fázový přechod mezi protáhlým a sploštělým tvarem v O (6) popisu jaderné rotace (cs)
  • Prolate-oblate shape-phase transition in the O(6) description of nuclear rotation (en)
skos:notation
  • RIV/61389005:_____/06:00307918!RIV08-AV0-61389005
http://linked.open.../vavai/riv/strany
  • 97;111
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(AV0Z10480505), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika
  • 1-2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 495483
http://linked.open...ai/riv/idVysledku
  • RIV/61389005:_____/06:00307918
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • NTERACTING-BOSON MODEL (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [F33103C45A5B]
http://linked.open...i/riv/nazevZdroje
  • Nuclear Physics. A
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 765
http://linked.open...iv/tvurceVysledku
  • Thiamová, Gabriela
  • Cejnar, P.
http://linked.open...n/vavai/riv/zamer
issn
  • 0375-9474
number of pages
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