0000000000147349

AUTHOR

J. Borggreen

showing 2 related works from this author

Optical response and shapes of charged sodium clusters; an analogue of the nuclear giant dipole response

1995

Collective vibrations of de-localized electrons against the positive charged ionic background in sodium clusters (plasmon resonances) and the collective vibrations of protons against neutrons in nuclei (giant dipole resonances) have several features in common. However, fundamental differences exist due to differences in the two media; the nucleus is a quantum liquid whereas the metallic medium is more like a plasma with classical positive ions and quantized electrons. The similarities and differences are illustrated by results from optical response measurements for charged sodium clusters with 14 to 48 atoms.

PhysicsDipolePhysics::Atomic and Molecular ClustersIonic bondingNeutronPlasmaElectronAtomic physicsSurface plasmon resonancePlasmonIon
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Nuclear Shape Transitions and Some Properties of Aligned-Particle Configurations at High Spin

1983

Two topics are addressed in this paper. First, we discuss the variation of shapes with spin and neutron number for nuclei in the N approx. = 88 transitional region. Second, we present comments on the feeding times of very high spin single-particle yrast states.

PhysicsAngular momentumIsotopeYrastNuclear TheoryApproxCondensed Matter PhysicsAtomic and Molecular Physics and OpticsNeutron numberParticleTransitional RegionAtomic physicsNuclear ExperimentMathematical PhysicsSpin-½Physica Scripta
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