Quadrupole Polarizability of Nuclei Rapidly "Rotating" about the Symmetry Axis

Level Statistics of Near-Yrast States in Rapidly Rotating Nuclei

The nearest neighbour level spacing distribution and the ∆3 statistics of level fluctuations associated with very high spin states (I >∼ 30) in rare-earth deformed nuclei are analysed by means of a cranked shell model. The many particle-many hole configurations created in the rotating Nilsson potential are mixed by the surface-delta two-body residual interaction. The levels in the near-yrast re...

Inverse cascade and symmetry breaking in rapidly rotating Boussinesq convection

Restoration of the Broken D2-symmetry in the Mean Field Description of Rotating Nuclei

Signature effects observed in rotational bands are a consequence of an inherent D2-symmetry. This symmetry is naturally broken by the mean field cranking approximation when a tilted (non-principal) axis orientation of the nuclear spin becomes stable. The possible tunneling forth and back between the two symmetry-related minima in the double-humped potential-energy surface appears as a typical b...

Spontaneous symmetry breaking of rapidly rotating stars in general relativity: influence of the 3D-shift vector

An analytical scheme and a numerical method in order to study the effects of general relativity on the viscosity driven secular bar mode instability of rapidly rotating stars are presented. The approach consists in perturbing an axisymmetric and stationary configuration and studying its evolution by constructing a series of triaxial quasi-equilibrium configurations. These are obtained by soluti...

Rapidly rotating fermi gases

We show that the density profile of a Fermi gas in rapidly rotating potential will develop prominent features reflecting the underlying Landau-level-like energy spectrum. Depending on the aspect ratio of the trap, these features can be a sequence of ellipsoidal volumes or a sequence of quantized steps.