F
F.J.W. Hahne
Researcher at Stellenbosch University
Publications - 5
Citations - 762
F.J.W. Hahne is an academic researcher from Stellenbosch University. The author has contributed to research in topics: Fubini–Study metric & Fidelity of quantum states. The author has an hindex of 3, co-authored 5 publications receiving 697 citations.
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Quasi-Hermitian operators in quantum mechanics and the variational principle
TL;DR: In this article, the authors establish a general criterion for a set of non-Hermitian operators to constitute a consistent quantum mechanical system, which allows for the normal quantum-mechanical interpretation.
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Giant dipole resonances in the interacting boson model
Frederik G. Scholtz,F.J.W. Hahne +1 more
TL;DR: In this paper, the authors introduced the giant dipole resonances represented by p bosons into the interacting boson model and showed that for nuclei with SU(3) symmetry the dipole is split by the interactions into two main parts, with any further fragmentation being generally small.
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Generalization of the quantized Bogoliubov-Valatin transformation
F.J.W. Hahne,Abraham Klein +1 more
TL;DR: The concept of quantized Bogoliubov-Valatin transformation was introduced in this paper, where a shell model algebra is mapped to a boson-quasifermion space in which only the usual angular momentum zero Cooper pair is bosonized.
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Pairing and repulsive effective interactions
F.J.W. Hahne,P. Ring +1 more
TL;DR: In this paper, a two-level model with particles interacting via monopole pairing forces is used to show that the ground state can exhibit superfluidity even in cases where the interaction is seemingly repulsive.
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The RPA as a group contraction and the implications for symmetries
Frederik G. Scholtz,F.J.W. Hahne +1 more
TL;DR: In this paper, it was shown that if the Hartree-Bose ground state breaks the symmetry, the RPA contracts the symmetry group onto a non-semisimple group which is a symmetry group of the hamiltonian.