92 citations · 269 across the 6 of their papers we have counts for
6 papers
Coherent quadrupole-octupole states from a SUSY-QM Hamiltonian hierarchy and shape invariance
N. Minkov, S. Drenska, P. Yotov
We show that the potential in the radial equation in the model of coherent quadrupole-octupole motion (CQOM) in nuclei generates a sequence of superpotentials and subsequent series…
Exactly separable version of the Bohr Hamiltonian with the Davidson potential
Dennis Bonatsos, E. A. McCutchan, N. Minkov +5
An exactly separable version of the Bohr Hamiltonian is developed using a potential of the form u(beta)+u(gamma)/beta^2, with the Davidson potential u(beta)= beta^2 + beta_0^4/beta…
Nuclear collective motion with a coherent coupling interaction between quadrupole and octupole modes
N. Minkov, P. Yotov, S. Drenska +4
A collective Hamiltonian for the rotation-vibration motion of nuclei is considered, in which the axial quadrupole and octupole degrees of freedom are coupled through the centrifuga…
Parity shift and beat staggering structure of octupole bands in a collective model for quadrupole-octupole deformed nuclei
N. Minkov, P. Yotov, S. Drenska +1
We propose a collective model formalism which describes the strong parity shift observed in low-lying spectra of nuclei with octupole deformations together with the fine rotational…
Analytic Description of Critical Point Actinides in a Transition from Octupole Deformation to Octupole Vibrations
Dennis Bonatsos, D. Lenis, N. Minkov +2
An analytic collective model in which the relative presence of the quadrupole and octupole deformations is determined by a parameter (phi_0), while axial symmetry is obeyed, is dev…
Polynomial splines interpolating prime series
Lumomir Alexandrov, D. B. Baranov, Plamen Yotov
Differentiable real function reproducing primes up to a given number and having a differentiable inverse function is constructed. This inverse function is compared with the Riemann…