collaborators

5 papers

nucl-th1995

Nuclear Shell Structure and Chaotic Dynamics in Hexadecapole Deformation

W. Dieter Heiss, Rashid G. Nazmitdinov, Stefanel Radu

The effect of an axially symmetric hexadecapole term is investigated in a strongly deformed quadrupole potential. While the system is nonintegrable and shows significant chaotic be…

nucl-th1995

Quantum Chaos, Degeneracies and Exceptional Points

W. Dieter Heiss, Stefanel Radu

It is argued that, if a regular Hamiltonian is perturbed by a term that produces chaos, the onset of chaos is shifted towards larger values of the perturbation parameter if the unp…

nucl-th1994

Shell Structures and Chaos in Deformed Nuclei and Large Metallic Clusters

W. Dieter Heiss, Rashid G. Nazmitdinov, Stefanel Radu

A reflection-asymmetric deformed oscillator potential is analysed from the classical and quantum mechanical point of view. The connection between occurrence of shell structures and…

nucl-th1994

Periodic Orbits and Shell Structure in Octupole Deformed Potentials

W. Dieter Heiss, Rashid G. Nazmitdinov, Stefanel Radu

The effect of an octupole term in a quadrupole deformed single particle potential is studied from the classical and quantum mechanical view point. Whereas the problem is nonintegra…

nucl-th1994

Chaos in Axially Symmetric Potentials with Octupole Deformation

W. Dieter Heiss, Rashid G. Nazmitdinov, Stefanel Radu

Classical and quantum mechanical results are reported for the single particle motion in a harmonic oscillator potential which is characterized by a quadrupole deformation and an ad…