42 citations · 546 across the 50 of their papers we have counts for
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Hierarchy of Dirac, Pauli and Klein-Gordon conserved operators in Taub-NUT background
Ion I. Cotăescu, Mihai Visinescu
The algebra of conserved observables of the SO(4,1) gauge-invariant theory of the Dirac fermions in the external field of the Kaluza-Klein monopole is investigated. It is shown tha…
Non-existence of f-symbols in generalized Taub-NUT spacetimes
Ion I. Cotăescu, Mihai Visinescu
In a previous article it was proved that the extensions of the Taub-NUT geometry do not admit Killing-Yano tensors, even if they possess St\" {a}ckel-Killing tensors. Here the anal…
Dynamical algebra and Dirac quantum modes in Taub-NUT background
Ion I. Cotăescu, Mihai Visinescu
The SO(4,1) gauge-invariant theory of the Dirac fermions in the external field of the Kaluza-Klein monopole is investigated. It is shown that the discrete quantum modes are governe…
Runge-Lenz operator for Dirac field in Taub-NUT background
Ion I. Cotăescu, Mihai Visinescu
Fermions in D=4 self-dual Euclidean Taub-NUT space are investigated. Dirac-type operators involving Killing-Yano tensors of the Taub-NUT geometry are explicitly given showing that…