Zobrazeno 1 - 10
of 1 994
pro vyhledávání: '"Leviatan, A."'
Autor:
Leviatan, D., Shevchuk, I. O.
We give here the final results about the validity of Jackson-type estimates in comonotone approximation of $2\pi$-periodic functions by trigonometric polynomials. For coconvex and the so called co-$q$-monotone, $q>2$, approximations, everything is kn
Externí odkaz:
http://arxiv.org/abs/2402.06103
Publikováno v:
Phys. Rev. C 108, L031305 (2023)
The empirical spectra and $E2$ decay rates in $^{110,112,114,116}$Cd are shown to be consistent with a vibrational interpretation for low-lying normal states, coexisting with a single deformed $\gamma$-soft band of intruder states. The observed devia
Externí odkaz:
http://arxiv.org/abs/2309.09285
Publikováno v:
Phys. Rev. C 106, L051304 (2022)
We introduce a new Bose-Fermi framework for studying spectral properties and quantum phase transitions (QPTs) in odd-mass nuclei, in the presence of configuration mixing. A detailed analysis of odd-mass Nb isotopes discloses the effects of an abrupt
Externí odkaz:
http://arxiv.org/abs/2210.00441
Autor:
Leviatan, Eyal, Mross, David F.
Publikováno v:
Phys. Rev. B 106, 165114 (2022)
Strong interactions between electrons in two dimensions can realize phases where their spins and charges separate. We capture this phenomenon within a dual formulation. Focusing on square lattices, we analyze the long-wavelength structure of vortices
Externí odkaz:
http://arxiv.org/abs/2206.00015
Publikováno v:
Bulg. J. Physics 49: 67-77, 2022
We use self-consistent mean-field methods in combination with the interacting boson model (IBM) of nuclei, to establish a linkage between universal energy density functionals (EDFs) and partial dynamical symmetry (PDS). An application to $^{168}$Er s
Externí odkaz:
http://arxiv.org/abs/2112.10540
Publikováno v:
Physical Review C 105, 014305 (2022)
The zirconium isotopes with $A=$ 92$-$110 have one of the most complicated evolution of structure in the nuclear chart. In order to understand the structural evolution of these isotopes, we carry a detailed calculation in a definite symmetry-based fr
Externí odkaz:
http://arxiv.org/abs/2112.09454
Autor:
Leviatan, Eyal, Mross, David F.
Publikováno v:
Phys. Rev. B 105 L201110 (2022)
Electrons undergoing a Mott transition may shed their charge but persist as neutral excitations of a quantum spin liquid (QSL). We introduce concrete two-dimensional models exhibiting this exotic behavior as they transition from superconducting or to
Externí odkaz:
http://arxiv.org/abs/2112.02112
Publikováno v:
In Journal of Approximation Theory May 2024 299
Publikováno v:
Physical Review C 104, 044317 (2021)
We show that the notion of partial dynamical symmetry is robust and founded on a microscopic many-body theory of nuclei. Based on the universal energy density functional framework, a general quantal boson Hamiltonian is derived and shown to have esse
Externí odkaz:
http://arxiv.org/abs/2103.13216
Autor:
Karayonchev, V., Jolie, J., Blazhev, A., Dewald, A., Esmaylzadeh, A., Fransen, C., Häfner, G., Knafla, L., Litzinger, J., Müller-Gatermann, C., Régis, J. -M., Schomacker, K., Vogt, A., Warr, N., Leviatan, A., Gavrielov, N.
Publikováno v:
Phys. Rev. C 102, 064314 (2020)
Lifetimes of low-spin excited states in $^{98}$Zr were measured using the recoil-distance Doppler-shift technique and the Doppler-shift attenuation method. The nucleus of interest was populated in a $^{96}$Zr($^{18}$O,$^{16}$O)$^{98}$Zr two-neutron t
Externí odkaz:
http://arxiv.org/abs/2103.01642