Nuclear quantum shape-phase transitions in odd-mass systems

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dc.contributor.authorQuan, S.en_ZA
dc.contributor.authorLi, Z. P.en_ZA
dc.contributor.authorVretenar, D.en_ZA
dc.contributor.authorMeng, Jieen_ZA
dc.date.accessioned2019-10-24T13:48:59Z
dc.date.available2019-10-24T13:48:59Z
dc.date.issued2018
dc.descriptionCITATION: Quan, S., et al. 2018. Nuclear quantum shape-phase transitions in odd-mass systems. Physical Review C, 97(3):031301, doi:10.1103/PhysRevC.97.031301.en_ZA
dc.descriptionThe original publication is available at https://journals.aps.org/prcen_ZA
dc.description.abstractMicroscopic signatures of nuclear ground-state shape-phase transitions in odd-mass Eu isotopes are explored starting from excitation spectra and collective wave functions obtained by diagonalization of a core-quasiparticle coupling Hamiltonian based on energy density functionals. As functions of the physical control parameter—the number of nucleons—theoretical low-energy spectra, two-neutron separation energies, charge isotope shifts, spectroscopic quadrupole moments, and E2 reduced transition matrix elements accurately reproduce available data and exhibit more-pronounced discontinuities at neutron number N=90 compared with the adjacent even-even Sm and Gd isotopes. The enhancement of the first-order quantum phase transition in odd-mass systems can be attributed to a shape polarization effect of the unpaired proton which, at the critical neutron number, starts predominantly coupling to Gd core nuclei that are characterized by larger quadrupole deformation and weaker proton pairing correlations compared with the corresponding Sm isotopes.en_ZA
dc.description.urihttps://journals.aps.org/prc/abstract/10.1103/PhysRevC.97.031301
dc.description.versionPublisher's versionen_ZA
dc.format.extent6 pages : colour illustrationsen_ZA
dc.identifier.citationQuan, S., et al. 2018. Nuclear quantum shape-phase transitions in odd-mass systems. Physical Review C, 97(3):031301, doi:10.1103/PhysRevC.97.031301en_ZA
dc.identifier.issn2469-9993 (online)
dc.identifier.issn2469-9985 (print)
dc.identifier.otherdoi:10.1103/PhysRevC.97.031301
dc.identifier.urihttp://hdl.handle.net/10019.1/106723
dc.language.isoen_ZAen_ZA
dc.publisherAmerican Physical Societyen_ZA
dc.subjectQuantum mechanicsen_ZA
dc.subjectQuantum phase transitionen_ZA
dc.subjectEuropium -- Isotopesen_ZA
dc.subjectOdd-mass nucleien_ZA
dc.subjectCovariant density functional theoryen_ZA
dc.subjectRelativistic Hartree-Bogoliubov implementationen_ZA
dc.subjectHamiltonian operatoren_ZA
dc.titleNuclear quantum shape-phase transitions in odd-mass systemsen_ZA
dc.typeArticleen_ZA
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